{"title":"Milltek Audi RS4 Performance Exhaust Systems","description":"\u003cp\u003eMilltek's Audi RS4 range covers the B5 V6 bi-turbo Avant (2000 to 2002), the B7 4.2 V8 Saloon, Avant and Cabriolet, the B8 4.2 FSI quattro Avant (2012 to 2015) and the B9 2.9 V6 Turbo Avant with or without an OPF\/GPF. There are cat-back systems for every generation, plus hi-flow sports cats, cat replacement pipes, downpipes and Active Valve Control for the later cars. Browse the \u003ca href=\"\/collections\/audi-performance-exhaust-systems\"\u003eMilltek Audi range\u003c\/a\u003e for other models.\u003c\/p\u003e","products":[{"product_id":"milltek-cat-back-exhaust-audi-rs4-b5-v6-bi-turbo-avant-00-02","title":"Milltek Cat Back Exhaust Audi RS4 B5 V6 Bi-Turbo Avant 00-02","description":"\u003ch2\u003eMilltek Cat-back Exhaust for Audi RS4 B5 V6 Bi-Turbo Avant (2000-2002) – Sharper Sound, Reduced Back Pressure\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's cat-back system for the Audi RS4 B5 V6 Bi-Turbo Avant. It replaces everything from the factory catalytic converter rearward with wider-bore pipework, a re-profiled mid-pipe and silencers tuned specifically for this platform, cutting back pressure and sharpening the exhaust note. The factory catalytic converter stays in place, so the car's emissions hardware is left as standard. It's offered in non-resonated or resonated EC approved versions, so you can pick the setup that suits how the car's used.\u003c\/p\u003e\n\u003cp\u003eIt's aimed at owners who want a noticeably different sound and a genuine, if modest, flow improvement without touching anything upstream of the cat: a straightforward bolt-on that doesn't need a remap or any other supporting mods to enjoy.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Cat-back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 63.5mm (2.5\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Style:\u003c\/strong\u003e Pulse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e63.5mm (2.5\") pipework\u003c\/li\u003e\n\u003cli\u003eReplaces the standard exhaust from the catalytic converter back, so the factory cat is retained\u003c\/li\u003e\n\u003cli\u003eEC approved versions available\u003c\/li\u003e\n\u003cli\u003eResonated (quieter) or non-resonated (louder) versions\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS4 B5 V6 Bi-Turbo Avant (2000-2002)\u003c\/li\u003e\n\u003cli\u003eAudi S4 2.7T quattro B5 (1997-2001)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e any model, engine or body style not listed above. Check your car before ordering.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eSome versions: Non-Resonated. For fitment to OEM Catalysts. Some versions: Resonated. For fitment to OEM Catalysts - ECE Approved. We recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the resonated and non-resonated versions?\u003c\/h3\u003e\n\u003cp\u003eThe resonated version adds extra silencing for a quieter, more refined tone. The non-resonated version leaves it out, so it is louder and more aggressive.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi S4 2.7T quattro B5?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi S4 2.7T quattro B5 as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eSome versions are EC approved; check the EC Approved line in the specification for the option you choose.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eNo. It fits behind the factory catalytic converter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eDoes it keep the factory catalytic converter?\u003c\/h3\u003e\n\u003cp\u003eYes. It fits behind the factory catalytic converter, which stays in place.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Non-Resonated","offer_id":56392690303361,"sku":"MIL-SSXAU008","price":1236.86,"currency_code":"GBP","in_stock":true},{"title":"Resonated - EC Approved","offer_id":56392690336129,"sku":"MIL-SSXAU002","price":1272.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU002_2.jpg?v=1791890711"},{"product_id":"milltek-hi-flow-sports-cats-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v1-ece-06-08","title":"Milltek Hi-Flow Sports Cats Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V1 ECE 06-08","description":"\u003ch2\u003eMilltek Hi-Flow Sports Cats for Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems (2006-2008) – Improved Flow, Sports Catalyst\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's large-bore downpipe with hi-flow sports cat for the Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems. It replaces the restrictive factory downpipe with a larger-bore pipe fitted with a high-flow sports catalyst in place of the standard unit, using a less dense substrate that flows significantly better than the factory cat while still treating the exhaust gases passing through it.\u003c\/p\u003e\n\u003cp\u003eIt sits between a stock downpipe and a full de-cat: a genuine flow gain suited to a Stage 1 or Stage 2 remap, without giving up the catalyst entirely the way a de-cat pipe does.\u003c\/p\u003e\n\u003cp\u003eIn the UK, a replacement catalyst on a car first registered from 1 March 2001 needs ECE R103 type-approval to be road legal, so check the EC Approved line in the specification for the version you choose.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Hi-Flow Sports Cats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 63.5mm (2.5\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e63.5mm (2.5\") pipework\u003c\/li\u003e\n\u003cli\u003eHigh-flow sports catalyst flows better than the dense factory unit while still treating exhaust gases\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eAudi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems (2006-2008)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e any model, engine or body style not listed above. Check your car before ordering.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, note: 200CPSI Race Cats - Must be fitted with the Milltek Sport cat-back system and requires a Stage 2 ECU remap. This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v1-ece-06-08\"\u003eMilltek Cat-back Exhaust Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V1 ECE 06-08\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eMilltek lists this as a race part without EC approval, so it is intended for off-road and competition use.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek notes: \"200CPSI Race Cats - Must be fitted with the Milltek Sport cat-back system and requires a Stage 2 ECU remap\". Without suitable software the engine management is likely to log faults.\u003c\/p\u003e\n\u003ch3\u003eCan I use it with my standard exhaust?\u003c\/h3\u003e\n\u003cp\u003eNo. Milltek states it must be fitted with the matching Milltek system, so budget for the cat-back as well.\u003c\/p\u003e\n\u003ch3\u003eHow is a sports cat different from a de-cat?\u003c\/h3\u003e\n\u003cp\u003eA sports cat still contains a catalyst, just a less dense one that flows better than the factory unit. A de-cat removes the catalyst completely.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392690368897,"sku":"MIL-SSXAU115","price":1343.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU115_1.jpg?v=1791890712"},{"product_id":"milltek-cat-replacement-pipes-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v1-ece-06-08","title":"Milltek Cat Replacement Pipes Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V1 ECE 06-08","description":"\u003ch2\u003eMilltek Cat Replacement Pipes for Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems (2006-2008) – Maximum Flow, Motorsport Use\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's large-bore downpipe and de-cat for the Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems. It replaces the factory downpipe with a larger-bore pipe and removes the catalytic converter entirely, clearing the single most restrictive point in the exhaust for the biggest flow gain available at this position in the system. It's usually fitted alongside a Stage 2 remap, since the ECU needs to be told to expect the different readings the lambda sensors give once the cat's gone.\u003c\/p\u003e\n\u003cp\u003eIt's built for owners already committed to a serious power upgrade rather than a casual bolt-on, so pair it with the matching Milltek cat-back system for the full effect.\u003c\/p\u003e\n\u003cp\u003eBecause it removes the cat, it's intended for off-road and competition use. A de-catted car will fail an MOT emissions test and isn't legal to use on UK roads.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Cat Replacement Pipes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 63.5mm (2.5\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e63.5mm (2.5\") pipework\u003c\/li\u003e\n\u003cli\u003eRemoves the factory catalyst for maximum flow (off-road and competition use only)\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eAudi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems (2006-2008)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e any model, engine or body style not listed above. Check your car before ordering.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, note: Must be fitted with the Milltek Sport cat-back system and requires a Stage 2 ECU remap. This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v1-ece-06-08\"\u003eMilltek Cat-back Exhaust Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V1 ECE 06-08\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eNo. Removing the catalyst means the car will fail an MOT emissions test, so it is for off-road and competition use only.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek notes: \"Must be fitted with the Milltek Sport cat-back system and requires a Stage 2 ECU remap\". Without suitable software the engine management is likely to log faults.\u003c\/p\u003e\n\u003ch3\u003eCan I use it with my standard exhaust?\u003c\/h3\u003e\n\u003cp\u003eNo. Milltek states it must be fitted with the matching Milltek system, so budget for the cat-back as well.\u003c\/p\u003e\n\u003ch3\u003eWill removing the cat cause a warning light?\u003c\/h3\u003e\n\u003cp\u003eWithout suitable software it is likely to, as the ECU expects the readings a working catalyst gives. This is why Milltek pairs it with a remap.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392690434433,"sku":"MIL-SSXAU285","price":705.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU285_1.jpg?v=1791890720"},{"product_id":"milltek-cat-back-exhaust-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v2-06-07","title":"Milltek Cat Back Exhaust Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V2 06-07","description":"\u003ch2\u003eMilltek Cat-back Exhaust for Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V2 Systems (2006-2007) – Sharper Sound, Reduced Back Pressure\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's cat-back system for the Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V2 Systems. It replaces everything from the factory catalytic converter rearward with wider-bore pipework, a re-profiled mid-pipe and silencers tuned specifically for this platform, cutting back pressure and sharpening the exhaust note. The factory catalytic converter stays in place, so the car's emissions hardware is left as standard. It's offered in 4 tailpipe finishes, so you can pick the setup that suits how the car's used.\u003c\/p\u003e\n\u003cp\u003eIt's aimed at owners who want a noticeably different sound and a genuine, if modest, flow improvement without touching anything upstream of the cat: a straightforward bolt-on that doesn't need a remap or any other supporting mods to enjoy.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Cat-back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 63.5mm (2.5\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e63.5mm (2.5\") pipework\u003c\/li\u003e\n\u003cli\u003eReplaces the standard exhaust from the catalytic converter back, so the factory cat is retained\u003c\/li\u003e\n\u003cli\u003eChoice of 4 tailpipe finishes: Brushed Titanium Oval, Burnt Titanium Oval, Cerakote Black Oval, Polished Oval\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eAudi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V2 Systems (2006-2007)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems, which needs the \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v1-ece-06-08\"\u003eMilltek Cat-back Exhaust Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V1 ECE 06-08\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eWe recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eWhich tailpipe finishes are available?\u003c\/h3\u003e\n\u003cp\u003eYou can choose from: Brushed Titanium Oval, Burnt Titanium Oval, Cerakote Black Oval, Polished Oval. The finish is cosmetic and does not change the sound.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v1-ece-06-08\"\u003eMilltek Cat-back Exhaust Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V1 ECE 06-08\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eMilltek does not list EC approval for this part. Any exhaust used on the road must still meet noise and emissions rules, so check the requirements where you live.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eNo. It fits behind the factory catalytic converter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eDoes it keep the factory catalytic converter?\u003c\/h3\u003e\n\u003cp\u003eYes. It fits behind the factory catalytic converter, which stays in place.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Brushed Titanium Oval","offer_id":56392690467201,"sku":"MIL-SSXAU1129","price":3182.7,"currency_code":"GBP","in_stock":true},{"title":"Burnt Titanium Oval","offer_id":56392690499969,"sku":"MIL-SSXAU1130","price":3260.03,"currency_code":"GBP","in_stock":true},{"title":"Cerakote Black Oval","offer_id":56392690532737,"sku":"MIL-SSXAU1128","price":3022.12,"currency_code":"GBP","in_stock":true},{"title":"Polished Oval","offer_id":56392690565505,"sku":"MIL-SSXAU1127","price":2908.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU1130_1.jpg?v=1791890727"},{"product_id":"milltek-cat-back-exhaust-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v1-ece-06-08","title":"Milltek Cat Back Exhaust Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V1 ECE 06-08","description":"\u003ch2\u003eMilltek Cat-back Exhaust for Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems (2006-2008) – Sharper Sound, Reduced Back Pressure\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's cat-back system for the Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems. It replaces everything from the factory catalytic converter rearward with wider-bore pipework, a re-profiled mid-pipe and silencers tuned specifically for this platform, cutting back pressure and sharpening the exhaust note. The factory catalytic converter stays in place, so the car's emissions hardware is left as standard. It's offered in non-resonated or resonated versions, 2 tailpipe finishes and valved or non-valved versions, so you can pick the setup that suits how the car's used.\u003c\/p\u003e\n\u003cp\u003eIt's aimed at owners who want a noticeably different sound and a genuine, if modest, flow improvement without touching anything upstream of the cat: a straightforward bolt-on that doesn't need a remap or any other supporting mods to enjoy.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Cat-back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 60mm (2.36\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 1.5 to 2 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e60mm (2.36\") pipework\u003c\/li\u003e\n\u003cli\u003eReplaces the standard exhaust from the catalytic converter back, so the factory cat is retained\u003c\/li\u003e\n\u003cli\u003eChoice of 2 tailpipe finishes: Black, Polished Oval\u003c\/li\u003e\n\u003cli\u003eEC approved versions available\u003c\/li\u003e\n\u003cli\u003eValved versions available for switchable volume\u003c\/li\u003e\n\u003cli\u003eResonated (quieter) or non-resonated (louder) versions\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eAudi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V1 \u0026amp; ECE Systems (2006-2008)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V2 Systems, which needs the \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v2-06-07\"\u003eMilltek Cat-back Exhaust Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V2 Systems 06-07\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 1.5 to 2 hours. We recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-hi-flow-sports-cats-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v1-ece-06-08\"\u003eMilltek Hi-Flow Sports Cats Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V1 ECE 06-08\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the resonated and non-resonated versions?\u003c\/h3\u003e\n\u003cp\u003eThe resonated version adds extra silencing for a quieter, more refined tone. The non-resonated version leaves it out, so it is louder and more aggressive.\u003c\/p\u003e\n\u003ch3\u003eShould I choose the valved or non-valved version?\u003c\/h3\u003e\n\u003cp\u003eThe valved version lets you switch between a quieter tone and the full exhaust note. Choose non-valved if you want the same sound all the time.\u003c\/p\u003e\n\u003ch3\u003eWhich tailpipe finishes are available?\u003c\/h3\u003e\n\u003cp\u003eYou can choose from: Black, Polished Oval. The finish is cosmetic and does not change the sound.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet - V2 Systems?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b7-4-2-v8-saloon-avant-cabriolet-v2-06-07\"\u003eMilltek Cat-back Exhaust Audi RS4 B7 4.2 V8 Saloon Avant Cabriolet V2 Systems 06-07\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eSome versions are EC approved; check the EC Approved line in the specification for the option you choose.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eNo. It fits behind the factory catalytic converter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eDoes it keep the factory catalytic converter?\u003c\/h3\u003e\n\u003cp\u003eYes. It fits behind the factory catalytic converter, which stays in place.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 1.5 to 2 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Non-Resonated \/ Black \/ Valved","offer_id":56392690631041,"sku":"MIL-SSXAU218","price":2161.48,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Polished Oval \/ Valved","offer_id":56392690663809,"sku":"MIL-SSXAU116","price":2062.94,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Black \/ Non-Valved","offer_id":56392690696577,"sku":"MIL-SSXAU062BLK","price":1372.28,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Polished Oval \/ Non-Valved","offer_id":56392690729345,"sku":"MIL-SSXAU117","price":1324.85,"currency_code":"GBP","in_stock":true},{"title":"Resonated \/ Black \/ Valved","offer_id":56392690762113,"sku":"MIL-SSXAU221","price":2396.02,"currency_code":"GBP","in_stock":true},{"title":"Resonated \/ Polished Oval \/ Valved","offer_id":56392690794881,"sku":"MIL-SSXAU061","price":2297.48,"currency_code":"GBP","in_stock":true},{"title":"Resonated \/ Black \/ Non-Valved","offer_id":56392690827649,"sku":"MIL-SSXAU060BLK","price":1606.82,"currency_code":"GBP","in_stock":true},{"title":"Resonated \/ Polished Oval \/ Non-Valved","offer_id":56392690860417,"sku":"MIL-SSXAU060","price":1559.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU218_1.jpg?v=1791890736"},{"product_id":"milltek-cat-back-exhaust-audi-rs4-b8-4-2-fsi-quattro-avant-12-15","title":"Milltek Cat Back Exhaust Audi RS4 B8 4.2 FSI Quattro Avant 12-15","description":"\u003ch2\u003eMilltek Cat-back Exhaust for Audi RS4 B8 4.2 FSI quattro Avant (2012-2015) – Sharper Sound, Reduced Back Pressure\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's cat-back system for the Audi RS4 B8 4.2 FSI quattro Avant. It replaces everything from the factory catalytic converter rearward with wider-bore pipework, a re-profiled mid-pipe and silencers tuned specifically for this platform, cutting back pressure and sharpening the exhaust note. The factory catalytic converter stays in place, so the car's emissions hardware is left as standard. It's offered in non-resonated, resonated or resonated US spec versions, so you can pick the setup that suits how the car's used.\u003c\/p\u003e\n\u003cp\u003eIt's aimed at owners who want a noticeably different sound and a genuine, if modest, flow improvement without touching anything upstream of the cat: a straightforward bolt-on that doesn't need a remap or any other supporting mods to enjoy.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Cat-back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 70mm (2.76\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 2 to 2.5 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e70mm (2.76\") pipework\u003c\/li\u003e\n\u003cli\u003eReplaces the standard exhaust from the catalytic converter back, so the factory cat is retained\u003c\/li\u003e\n\u003cli\u003eEC approved versions available\u003c\/li\u003e\n\u003cli\u003eResonated (quieter) or non-resonated (louder) versions\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eAudi RS4 B8 4.2 FSI quattro Avant (2012-2015)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e any model, engine or body style not listed above. Check your car before ordering.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 2 to 2.5 hours. We recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the resonated and non-resonated versions?\u003c\/h3\u003e\n\u003cp\u003eThe resonated version adds extra silencing for a quieter, more refined tone. The non-resonated version leaves it out, so it is louder and more aggressive.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eSome versions are EC approved; check the EC Approved line in the specification for the option you choose.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eNo. It fits behind the factory catalytic converter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eDoes it keep the factory catalytic converter?\u003c\/h3\u003e\n\u003cp\u003eYes. It fits behind the factory catalytic converter, which stays in place.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 2 to 2.5 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Non-Resonated","offer_id":56392690925953,"sku":"MIL-SSXAU337","price":2320.58,"currency_code":"GBP","in_stock":true},{"title":"Resonated","offer_id":56392690958721,"sku":"MIL-SSXAU336","price":2460.67,"currency_code":"GBP","in_stock":true},{"title":"Resonated - US Spec","offer_id":56392690991489,"sku":"MIL-SSXAU338","price":2079.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU337_1.jpg?v=1791890731"},{"product_id":"milltek-active-valve-control-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18","title":"Milltek Active Valve Control Audi RS4 B9 2.9 V6 Turbo Avant Non-OPF\/GPF 18+","description":"\u003ch2\u003eMilltek Active Valve Control for Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards) – Switchable Exhaust Volume\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's active valve control system for the Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models). It adds an electronically-operated valve to an existing Milltek system, opening a second, less restrictive path through the silencer that stays closed for a refined, near-standard tone around town and opens under load or at the press of a button for a louder, more open sound.\u003c\/p\u003e\n\u003cp\u003eIt's the option to go for if you want the flexibility to keep the car quiet for early starts and long motorway runs, then switch to the full exhaust note whenever you actually want to hear it, without swapping any hardware.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Active Valve Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 0.5 to 1 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Coupe (Non OPF\/GPF Models) (2017-2019)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Coupe (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (Non-OPF\/GPF Models) (2018-2019)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9.5 2.9 V6 Turbo Coupe (Non OPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9.5 2.9 V6 Turbo Sportback (Non OPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS6 C8 4.0 V8 bi-turbo in Performance Edition (Non OPF\/GPF Models - USA\/ROW Models) (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS6 C8 4.0 V8 bi-turbo in Performance Edition (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS7 C8 4.0 V8 bi-turbo (Non OPF\/GPF US\/ROW Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS7 C8 4.0 V8 bi-turbo (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models) (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models) (2020 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e Audi RS4 B9 OPF\/GPF models, or any model not listed above.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 0.5 to 1 hours. This involves connecting to the car's wiring and exhaust valves, so we recommend fitting by a specialist familiar with the car's electrics.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-large-bore-downpipes-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Large-bore Downpipes Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eHow is it controlled?\u003c\/h3\u003e\n\u003cp\u003eDepending on the version, it is controlled using a remote control.\u003c\/p\u003e\n\u003ch3\u003eWill the car be louder all the time?\u003c\/h3\u003e\n\u003cp\u003eNo. With the valve closed the tone stays close to standard; open it when you want the full exhaust note.\u003c\/p\u003e\n\u003ch3\u003eIs this a complete exhaust system?\u003c\/h3\u003e\n\u003cp\u003eNo. It is designed to be used with the system or factory parts described above, rather than as a complete exhaust on its own.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 0.5 to 1 hours.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392691024257,"sku":"MIL-SSXAU1052","price":314.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU1052_1.jpg?v=1791890731"},{"product_id":"milltek-large-bore-downpipes-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18","title":"Milltek Large-bore Downpipes Audi RS4 B9 2.9 V6 Turbo Avant Non-OPF\/GPF 18+","description":"\u003ch2\u003eMilltek Large-bore Downpipes for Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards) – Improved Turbo Flow\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's large-bore downpipe for the Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models). It replaces the factory downpipe with a larger-bore pipe for improved flow at one of the most restrictive points in the system. Check the specification below to see whether this particular version retains a catalyst or removes it.\u003c\/p\u003e\n\u003cp\u003eIf the catalyst has been removed, this is intended for off-road and competition use only, and the car won't be legal for road use fitted with it. Check the specification below for this system's catalyst and approval status.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Large-bore Downpipes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 76.2mm (3\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 3 to 4 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e76.2mm (3\") pipework\u003c\/li\u003e\n\u003cli\u003eLarger, less restrictive downpipe improves flow from the turbo outlet\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Coupe (Non OPF\/GPF Models) (2017-2019)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (Non-OPF\/GPF Models) (2018-2019)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9.5 2.9 V6 Turbo Coupe (Non OPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9.5 2.9 V6 Turbo Sportback (Non OPF Models) (2019 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e Audi RS4 B9 OPF\/GPF models, or any model not listed above.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 3 to 4 hours. Before ordering, note: With 200 Cell HJS HQ High Flow Cats (Requires stage 2 ECU remap). This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-active-valve-control-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Active Valve Control Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RS5 B9 2.9 V6 Turbo Coupe (Non OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RS5 B9 2.9 V6 Turbo Coupe (Non OPF\/GPF Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eMilltek lists this as a race part without EC approval, so it is intended for off-road and competition use.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek notes: \"With 200 Cell HJS HQ High Flow Cats (Requires stage 2 ECU remap)\". Without suitable software the engine management is likely to log faults.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 3 to 4 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392691253633,"sku":"MIL-SSXAU815","price":3259.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU815_1.jpg?v=1791890739"},{"product_id":"milltek-cat-replacement-pipes-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18","title":"Milltek Cat Replacement Pipes Audi RS4 B9 2.9 V6 Turbo Avant Non-OPF\/GPF 18+","description":"\u003ch2\u003eMilltek Cat Replacement Pipes for Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards) – Maximum Flow, Motorsport Use\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's large-bore downpipe and de-cat for the Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models). It replaces the factory downpipe with a larger-bore pipe and removes the catalytic converter entirely, clearing the single most restrictive point in the exhaust for the biggest flow gain available at this position in the system. It's usually fitted alongside a Stage 2 remap, since the ECU needs to be told to expect the different readings the lambda sensors give once the cat's gone.\u003c\/p\u003e\n\u003cp\u003eIt's built for owners already committed to a serious power upgrade rather than a casual bolt-on, so pair it with the matching Milltek cat-back system for the full effect.\u003c\/p\u003e\n\u003cp\u003eBecause it removes the cat, it's intended for off-road and competition use. A de-catted car will fail an MOT emissions test and isn't legal to use on UK roads.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Cat Replacement Pipes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 76.2mm (3\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 3 to 4 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e76.2mm (3\") pipework\u003c\/li\u003e\n\u003cli\u003eRemoves the factory catalyst for maximum flow (off-road and competition use only)\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Coupe (Non OPF\/GPF Models) (2017-2019)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (Non-OPF\/GPF Models) (2018-2019)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9.5 2.9 V6 Turbo Coupe (Non OPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9.5 2.9 V6 Turbo Sportback (Non OPF Models) (2019 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models), which needs the \u003ca href=\"\/products\/milltek-decat-downpipe-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19\"\u003eMilltek Downpipe \u0026amp; De-cat Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 3 to 4 hours. Before ordering, note: (Requires stage 2 ECU remap). This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-active-valve-control-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Active Valve Control Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RS5 B9 2.9 V6 Turbo Coupe (Non OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RS5 B9 2.9 V6 Turbo Coupe (Non OPF\/GPF Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-decat-downpipe-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19\"\u003eMilltek Downpipe \u0026amp; De-cat Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eNo. Removing the catalyst means the car will fail an MOT emissions test, so it is for off-road and competition use only.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek notes: \"(Requires stage 2 ECU remap)\". Without suitable software the engine management is likely to log faults.\u003c\/p\u003e\n\u003ch3\u003eWill removing the cat cause a warning light?\u003c\/h3\u003e\n\u003cp\u003eWithout suitable software it is likely to, as the ECU expects the readings a working catalyst gives. This is why Milltek pairs it with a remap.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 3 to 4 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392691286401,"sku":"MIL-SSXAU816","price":1682.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU816_1.jpg?v=1791890741"},{"product_id":"milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18","title":"Milltek Cat Back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant Non-OPF\/GPF 18+","description":"\u003ch2\u003eMilltek Cat-back Exhaust for Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards) – Sharper Sound, Reduced Back Pressure\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's cat-back system for the Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models). It replaces everything from the factory catalytic converter rearward with wider-bore pipework, a re-profiled mid-pipe and silencers tuned specifically for this platform, cutting back pressure and sharpening the exhaust note. The factory catalytic converter stays in place, so the car's emissions hardware is left as standard. It's offered in road+ part resonated, non-resonated or resonated EC approved versions and 4 tailpipe finishes, so you can pick the setup that suits how the car's used.\u003c\/p\u003e\n\u003cp\u003eIt's aimed at owners who want a noticeably different sound and a genuine, if modest, flow improvement without touching anything upstream of the cat: a straightforward bolt-on that doesn't need a remap or any other supporting mods to enjoy.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Cat-back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 70mm (2.76\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 2 to 2.5 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e70mm (2.76\") pipework\u003c\/li\u003e\n\u003cli\u003eReplaces the standard exhaust from the catalytic converter back, so the factory cat is retained\u003c\/li\u003e\n\u003cli\u003eChoice of 4 tailpipe finishes: Burnt Titanium Oval, Cerakote Black Oval, Polished Oval, Titanium Oval\u003c\/li\u003e\n\u003cli\u003eEC approved versions available\u003c\/li\u003e\n\u003cli\u003eResonated (quieter) or non-resonated (louder) versions\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (Non-OPF\/GPF Models) (2018-2019)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot every version fits every car in this list. Check the fitment shown for the option you select.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models), which needs the \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 2 to 2.5 hours. We recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-active-valve-control-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Active Valve Control Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-large-bore-downpipes-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Large-bore Downpipes Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the resonated and non-resonated versions?\u003c\/h3\u003e\n\u003cp\u003eThe resonated version adds extra silencing for a quieter, more refined tone. The non-resonated version leaves it out, so it is louder and more aggressive.\u003c\/p\u003e\n\u003ch3\u003eWhich tailpipe finishes are available?\u003c\/h3\u003e\n\u003cp\u003eYou can choose from: Burnt Titanium Oval, Cerakote Black Oval, Polished Oval, Titanium Oval. The finish is cosmetic and does not change the sound.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RS5 B9 2.9 V6 Turbo Sportback (Non-OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RS5 B9 2.9 V6 Turbo Sportback (Non-OPF\/GPF Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eSome versions are EC approved; check the EC Approved line in the specification for the option you choose.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eNo. It fits behind the factory catalytic converter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eDoes it keep the factory catalytic converter?\u003c\/h3\u003e\n\u003cp\u003eYes. It fits behind the factory catalytic converter, which stays in place.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 2 to 2.5 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Road+, Part Resonated \/ Burnt Titanium Oval","offer_id":56392691319169,"sku":"MIL-SSXAU808","price":2905.34,"currency_code":"GBP","in_stock":true},{"title":"Road+, Part Resonated \/ Cerakote Black Oval","offer_id":56392691351937,"sku":"MIL-SSXAU760","price":2667.44,"currency_code":"GBP","in_stock":true},{"title":"Road+, Part Resonated \/ Polished Oval","offer_id":56392691384705,"sku":"MIL-SSXAU759","price":2554.13,"currency_code":"GBP","in_stock":true},{"title":"Road+, Part Resonated \/ Titanium Oval","offer_id":56392691417473,"sku":"MIL-SSXAU807","price":2828.02,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Burnt Titanium Oval","offer_id":56392691450241,"sku":"MIL-SSXAU804","price":2959.27,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Cerakote Black Oval","offer_id":56392691483009,"sku":"MIL-SSXAU751","price":2778.96,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Polished Oval","offer_id":56392691515777,"sku":"MIL-SSXAU752","price":2686.97,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Titanium Oval","offer_id":56392691548545,"sku":"MIL-SSXAU803","price":2904.61,"currency_code":"GBP","in_stock":true},{"title":"Resonated - EC Approved \/ Burnt Titanium Oval","offer_id":56392691581313,"sku":"MIL-SSXAU806","price":3312.4,"currency_code":"GBP","in_stock":true},{"title":"Resonated - EC Approved \/ Cerakote Black Oval","offer_id":56392691614081,"sku":"MIL-SSXAU750","price":3074.49,"currency_code":"GBP","in_stock":true},{"title":"Resonated - EC Approved \/ Polished Oval","offer_id":56392691646849,"sku":"MIL-SSXAU749","price":2961.18,"currency_code":"GBP","in_stock":true},{"title":"Resonated - EC Approved \/ Titanium Oval","offer_id":56392691679617,"sku":"MIL-SSXAU805","price":3235.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU808_1.jpg?v=1791890762"},{"product_id":"milltek-active-valve-control-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19","title":"Milltek Active Valve Control Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+","description":"\u003ch2\u003eMilltek Active Valve Control for Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards) – Switchable Exhaust Volume\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's active valve control system for the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models). It adds an electronically-operated valve to an existing Milltek system, opening a second, less restrictive path through the silencer that stays closed for a refined, near-standard tone around town and opens under load or at the press of a button for a louder, more open sound.\u003c\/p\u003e\n\u003cp\u003eIt's the option to go for if you want the flexibility to keep the car quiet for early starts and long motorway runs, then switch to the full exhaust note whenever you actually want to hear it, without swapping any hardware.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Active Valve Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 0.5 to 1 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models) (2018 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Coupe (Non OPF\/GPF Models) (2017-2019)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Coupe (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (Non-OPF\/GPF Models) (2018-2019)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9.5 2.9 V6 Turbo Coupe (Non OPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9.5 2.9 V6 Turbo Sportback (Non OPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS6 C8 4.0 V8 bi-turbo in Performance Edition (Non OPF\/GPF Models - USA\/ROW Models) (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS6 C8 4.0 V8 bi-turbo in Performance Edition (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS7 C8 4.0 V8 bi-turbo (Non OPF\/GPF US\/ROW Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS7 C8 4.0 V8 bi-turbo (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models) (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models) (2020 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e Audi RS4 B9 OPF\/GPF models, or any model not listed above.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 0.5 to 1 hours. This involves connecting to the car's wiring and exhaust valves, so we recommend fitting by a specialist familiar with the car's electrics.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-large-bore-downpipes-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Large-bore Downpipes Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eHow is it controlled?\u003c\/h3\u003e\n\u003cp\u003eDepending on the version, it is controlled using a remote control.\u003c\/p\u003e\n\u003ch3\u003eWill the car be louder all the time?\u003c\/h3\u003e\n\u003cp\u003eNo. With the valve closed the tone stays close to standard; open it when you want the full exhaust note.\u003c\/p\u003e\n\u003ch3\u003eIs this a complete exhaust system?\u003c\/h3\u003e\n\u003cp\u003eNo. It is designed to be used with the system or factory parts described above, rather than as a complete exhaust on its own.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 0.5 to 1 hours.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392691777921,"sku":"MIL-SSXAU1052","price":314.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU1052_1_666342d8-55b5-447f-807f-2ca718356a0a.jpg?v=1791890747"},{"product_id":"milltek-decat-downpipe-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19","title":"Milltek Decat Downpipe Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+","description":"\u003ch2\u003eMilltek Downpipe \u0026amp; De-cat for Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) (2019 onwards) – Maximum Flow, Motorsport Use\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's large-bore downpipe and de-cat for the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models). It replaces the factory downpipe with a larger-bore pipe and removes the catalytic converter entirely, clearing the single most restrictive point in the exhaust for the biggest flow gain available at this position in the system. It's usually fitted alongside a Stage 2 remap, since the ECU needs to be told to expect the different readings the lambda sensors give once the cat's gone.\u003c\/p\u003e\n\u003cp\u003eIt's built for owners already committed to a serious power upgrade rather than a casual bolt-on, so pair it with the matching Milltek cat-back system for the full effect.\u003c\/p\u003e\n\u003cp\u003eBecause it removes the cat, it's intended for off-road and competition use. A de-catted car will fail an MOT emissions test and isn't legal to use on UK roads.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Large-bore Downpipe and De-cat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 70mm (2.76\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 3 to 3.5 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e70mm (2.76\") pipework\u003c\/li\u003e\n\u003cli\u003eRemoves the factory catalyst for maximum flow (off-road and competition use only)\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Coupe (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models), which needs the \u003ca href=\"\/products\/milltek-cat-replacement-pipes-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Cat Replacement Pipes Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 3 to 3.5 hours. Before ordering, note: Decat and OPF\/GPF Bypass (Requires stage 2 ECU remap). This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RS5 B9 2.9 V6 Turbo Coupe (OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RS5 B9 2.9 V6 Turbo Coupe (OPF\/GPF Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-cat-replacement-pipes-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Cat Replacement Pipes Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eNo. Removing the catalyst means the car will fail an MOT emissions test, so it is for off-road and competition use only.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek notes: \"Decat and OPF\/GPF Bypass (Requires stage 2 ECU remap)\". Without suitable software the engine management is likely to log faults.\u003c\/p\u003e\n\u003ch3\u003eWill removing the cat cause a warning light?\u003c\/h3\u003e\n\u003cp\u003eWithout suitable software it is likely to, as the ECU expects the readings a working catalyst gives. This is why Milltek pairs it with a remap.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 3 to 3.5 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392691810689,"sku":"MIL-SSXAU820","price":1857.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU820_1.jpg?v=1791890749"},{"product_id":"milltek-hi-flow-sports-cats-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19","title":"Milltek Hi-Flow Sports Cats Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+","description":"\u003ch2\u003eMilltek Hi-Flow Sports Cats for Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) (2019 onwards) – Improved Flow, Sports Catalyst\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's large-bore downpipe with hi-flow sports cat for the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models). It replaces the restrictive factory downpipe with a larger-bore pipe fitted with a high-flow sports catalyst in place of the standard unit, using a less dense substrate that flows significantly better than the factory cat while still treating the exhaust gases passing through it.\u003c\/p\u003e\n\u003cp\u003eIt sits between a stock downpipe and a full de-cat: a genuine flow gain suited to a Stage 1 or Stage 2 remap, without giving up the catalyst entirely the way a de-cat pipe does.\u003c\/p\u003e\n\u003cp\u003eIn the UK, a replacement catalyst on a car first registered from 1 March 2001 needs ECE R103 type-approval to be road legal, so check the EC Approved line in the specification for the version you choose.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Hi-Flow Sports Cats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 70mm (2.76\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 3 to 3.5 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e70mm (2.76\") pipework\u003c\/li\u003e\n\u003cli\u003eHigh-flow sports catalyst flows better than the dense factory unit while still treating exhaust gases\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Coupe (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e any model, engine or body style not listed above. Check your car before ordering.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 3 to 3.5 hours. Before ordering, note: With HJS 200 Cell Cat and OPF\/GPF Bypass (Requires stage 2 ECU remap). This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RS5 B9 2.9 V6 Turbo Coupe (OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RS5 B9 2.9 V6 Turbo Coupe (OPF\/GPF Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eMilltek lists this as a race part without EC approval, so it is intended for off-road and competition use.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek notes: \"With HJS 200 Cell Cat and OPF\/GPF Bypass (Requires stage 2 ECU remap)\". Without suitable software the engine management is likely to log faults.\u003c\/p\u003e\n\u003ch3\u003eHow is a sports cat different from a de-cat?\u003c\/h3\u003e\n\u003cp\u003eA sports cat still contains a catalyst, just a less dense one that flows better than the factory unit. A de-cat removes the catalyst completely.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 3 to 3.5 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392691876225,"sku":"MIL-SSXAU819","price":3445.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU819_1_77de3602-4d8c-4a82-9531-240df9f697e1.jpg?v=1791890751"},{"product_id":"milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19","title":"Milltek Cat Back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+","description":"\u003ch2\u003eMilltek Cat-back Exhaust for Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) (2019 onwards) – Sharper Sound, Reduced Back Pressure\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's cat-back system for the Audi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models). It replaces everything from the factory catalytic converter rearward with wider-bore pipework, a re-profiled mid-pipe and silencers tuned specifically for this platform, cutting back pressure and sharpening the exhaust note. The factory catalytic converter stays in place, so the car's emissions hardware is left as standard. It's offered in non-resonated, road+ part resonated or resonated EC approved versions and 4 tailpipe finishes, so you can pick the setup that suits how the car's used.\u003c\/p\u003e\n\u003cp\u003eIt's aimed at owners who want a noticeably different sound and a genuine, if modest, flow improvement without touching anything upstream of the cat: a straightforward bolt-on that doesn't need a remap or any other supporting mods to enjoy.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Cat-back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 70mm (2.76\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 2 to 2.5 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e70mm (2.76\") pipework\u003c\/li\u003e\n\u003cli\u003eReplaces the standard exhaust from the catalytic converter back, so the factory cat is retained\u003c\/li\u003e\n\u003cli\u003eChoice of 4 tailpipe finishes: Burnt Titanium Oval, Cerakote Black Oval, Polished Oval, Titanium Oval\u003c\/li\u003e\n\u003cli\u003eEC approved versions available\u003c\/li\u003e\n\u003cli\u003eResonated (quieter) or non-resonated (louder) versions\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS4 B9 2.9 V6 Turbo Avant (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS5 B9 2.9 V6 Turbo Sportback (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot every version fits every car in this list. Check the fitment shown for the option you select.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models), which needs the \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 2 to 2.5 hours. We recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-decat-downpipe-audi-rs4-b9-2-9-v6-turbo-avant-opf-gpf-19\"\u003eMilltek Downpipe \u0026amp; De-cat Audi RS4 B9 2.9 V6 Turbo Avant OPF\/GPF 19+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the resonated and non-resonated versions?\u003c\/h3\u003e\n\u003cp\u003eThe resonated version adds extra silencing for a quieter, more refined tone. The non-resonated version leaves it out, so it is louder and more aggressive.\u003c\/p\u003e\n\u003ch3\u003eWhich tailpipe finishes are available?\u003c\/h3\u003e\n\u003cp\u003eYou can choose from: Burnt Titanium Oval, Cerakote Black Oval, Polished Oval, Titanium Oval. The finish is cosmetic and does not change the sound.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RS5 B9 2.9 V6 Turbo Sportback (OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RS5 B9 2.9 V6 Turbo Sportback (OPF\/GPF Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-rs4-b9-2-9-v6-turbo-avant-non-opf-gpf-18\"\u003eMilltek Cat-back Exhaust Audi RS4 B9 2.9 V6 Turbo Avant Non OPF\/GPF 18+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eSome versions are EC approved; check the EC Approved line in the specification for the option you choose.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eNo. It fits behind the factory catalytic converter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eDoes it keep the factory catalytic converter?\u003c\/h3\u003e\n\u003cp\u003eYes. It fits behind the factory catalytic converter, which stays in place.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 2 to 2.5 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Non-Resonated \/ Burnt Titanium Oval","offer_id":56392691941761,"sku":"MIL-SSXAU832","price":3213.21,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Cerakote Black Oval","offer_id":56392691974529,"sku":"MIL-SSXAU830","price":3032.89,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Polished Oval","offer_id":56392692007297,"sku":"MIL-SSXAU829","price":2940.89,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated \/ Titanium Oval","offer_id":56392692040065,"sku":"MIL-SSXAU831","price":3158.53,"currency_code":"GBP","in_stock":true},{"title":"Road+, Part Resonated \/ Burnt Titanium Oval","offer_id":56392692072833,"sku":"MIL-SSXAU828","price":3159.27,"currency_code":"GBP","in_stock":true},{"title":"Road+, Part Resonated \/ Cerakote Black Oval","offer_id":56392692105601,"sku":"MIL-SSXAU826","price":2921.36,"currency_code":"GBP","in_stock":true},{"title":"Road+, Part Resonated \/ Polished Oval","offer_id":56392692138369,"sku":"MIL-SSXAU825","price":2808.05,"currency_code":"GBP","in_stock":true},{"title":"Road+, Part Resonated \/ Titanium Oval","offer_id":56392692171137,"sku":"MIL-SSXAU827","price":3081.94,"currency_code":"GBP","in_stock":true},{"title":"Resonated - EC Approved \/ Burnt Titanium Oval","offer_id":56392692203905,"sku":"MIL-SSXAU824","price":3566.32,"currency_code":"GBP","in_stock":true},{"title":"Resonated - EC Approved \/ Cerakote Black Oval","offer_id":56392692236673,"sku":"MIL-SSXAU822","price":3328.42,"currency_code":"GBP","in_stock":true},{"title":"Resonated - EC Approved \/ Polished Oval","offer_id":56392692269441,"sku":"MIL-SSXAU821","price":3215.11,"currency_code":"GBP","in_stock":true},{"title":"Resonated - EC Approved \/ Titanium Oval","offer_id":56392692302209,"sku":"MIL-SSXAU823","price":3488.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU832_1_2f52a5e1-3273-41b0-bc3d-019fe9510fe9.jpg?v=1791890777"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/collections\/audi-rs4.jpg?v=1791897473","url":"https:\/\/milltekexhaustshop.com\/collections\/audi-rs4-performance-exhaust-systems.oembed","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}