{"title":"Milltek Audi SQ8 Performance Exhaust Systems","description":"\u003cp\u003eEvery Milltek part for the Audi SQ8 is for the pre-facelift 4.0 V8 Bi-Turbo built from 2020 to 2024, split between petrol OPF\/GPF cars and non-OPF cars. Non-OPF owners can choose a cat-back or front pipe-back system, OPF\/GPF owners a filter-back, and both have sports cat downpipes, de-cat downpipes and Active Suspension Control. See the full \u003ca href=\"\/collections\/audi-performance-exhaust-systems\"\u003eMilltek Audi range\u003c\/a\u003e for more.\u003c\/p\u003e","products":[{"product_id":"milltek-active-suspension-control-audi-sq8-4-0-v8-bi-turbo-non-opf-gpf-pre-facelift-20-24","title":"Milltek Active Suspension Control Audi SQ8 4.0 V8 Bi-Turbo Non-OPF\/GPF Pre-Facelift 20-24","description":"\u003ch2\u003eMilltek Active Suspension Control for Audi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models) (2020 onwards) – Valve Control for Air Suspension\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's active suspension control module for the pre-facelift, non-OPF\/GPF Audi SQ8 4.0 V8 Bi-Turbo. It's a module that lets an existing Milltek valved system keep working correctly on a car fitted with adaptive air suspension, since the suspension's constant small ride-height changes would otherwise interfere with a standard valve setup. Depending on the application it's controlled via Bluetooth or a dedicated phone app.\u003c\/p\u003e\n\u003cp\u003eIt's a required addition alongside a valved Milltek system on these air-suspension-equipped models, not a standalone exhaust upgrade in its own right.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Active Suspension Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 1 to 2 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\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\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e Audi RSQ8 4.0 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. 1 to 2 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-decat-downpipe-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Downpipe \u0026amp; De-cat Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-front-pipe-back-exhaust-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Front Pipe-back Exhaust Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eWhat does it work with?\u003c\/h3\u003e\n\u003cp\u003eMilltek notes: \"With Bluetooth iOS and Android App Control\". Check this matches your current exhaust before ordering.\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. 1 to 2 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":56392752398721,"sku":"MIL-SSXAU1053","price":1460.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU1053_1_49ba6662-10aa-4818-b578-e661ea78567b.jpg?v=1791891729"},{"product_id":"milltek-decat-downpipe-audi-sq8-4-0-v8-bi-turbo-non-opf-gpf-pre-facelift-20-24","title":"Milltek Decat Downpipe Audi SQ8 4.0 V8 Bi-Turbo Non-OPF\/GPF Pre-Facelift 20-24","description":"\u003ch2\u003eMilltek Downpipe \u0026amp; De-cat for Audi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models) (2020 onwards) – Maximum Flow, Motorsport Use\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's large-bore downpipe and de-cat for the Audi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift). 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 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. 3.5 to 4.5 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\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 RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models) (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models), which needs the \u003ca href=\"\/products\/milltek-decat-downpipe-audi-rsq8-4-0-v8-bi-turbo-opf-gpf-20\"\u003eMilltek Downpipe \u0026amp; De-cat Audi RSQ8 4.0 V8 Bi-Turbo OPF\/GPF 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 3.5 to 4.5 hours. 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-suspension-control-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Active Suspension Control Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-front-pipe-back-exhaust-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Front Pipe-back Exhaust Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-decat-downpipe-audi-rsq8-4-0-v8-bi-turbo-opf-gpf-20\"\u003eMilltek Downpipe \u0026amp; De-cat Audi RSQ8 4.0 V8 Bi-Turbo OPF\/GPF 20+\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\u003eA suitable remap is strongly recommended, as the engine management needs to account for the change in flow and sensor readings. Speak to your tuner before fitting.\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. 3.5 to 4.5 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":56392752431489,"sku":"MIL-SSXAU955","price":2583.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU955_1.jpg?v=1791891731"},{"product_id":"milltek-sports-cat-downpipes-audi-sq8-4-0-v8-bi-turbo-non-opf-gpf-pre-facelift-20-24","title":"Milltek Sports Cat Downpipes Audi SQ8 4.0 V8 Bi-Turbo Non-OPF\/GPF Pre-Facelift 20-24","description":"\u003ch2\u003eMilltek Downpipes \u0026amp; Sports Cats for Audi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models) (2020 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 SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift). 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 Large Bore Downpipes and Hi-Flow Sports Cats\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. 3.5 to 4.5 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\u003e76.2mm (3\") 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 RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models) (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models), which needs the \u003ca href=\"\/products\/milltek-sports-cat-downpipes-audi-rsq8-4-0-v8-bi-turbo-opf-gpf-20\"\u003eMilltek Downpipes \u0026amp; Sports Cats Audi RSQ8 4.0 V8 Bi-Turbo OPF\/GPF 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 3.5 to 4.5 hours. 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-suspension-control-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Active Suspension Control Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-front-pipe-back-exhaust-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Front Pipe-back Exhaust Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-sports-cat-downpipes-audi-rsq8-4-0-v8-bi-turbo-opf-gpf-20\"\u003eMilltek Downpipes \u0026amp; Sports Cats Audi RSQ8 4.0 V8 Bi-Turbo OPF\/GPF 20+\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\u003eA suitable remap is strongly recommended, as the engine management needs to account for the change in flow and sensor readings. Speak to your tuner before fitting.\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. 3.5 to 4.5 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":56392752464257,"sku":"MIL-SSXAU956","price":4134.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU956_1_bc50244f-3f3c-44ea-ae51-9ca839ec81fb.jpg?v=1791891732"},{"product_id":"milltek-front-pipe-back-exhaust-audi-sq8-4-0-v8-bi-turbo-pre-facelift-non-opf-gpf-20-24","title":"Milltek Front Pipe Back Exhaust Audi SQ8 4.0 V8 Bi-Turbo Pre-Facelift Non-OPF\/GPF 20-24","description":"\u003ch2\u003eMilltek Front Pipe-back Exhaust for Audi SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) (2021 onwards) – Sharper Sound, Reduced Back Pressure\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's front-pipe-back system for the Audi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift). It replaces everything from close to the turbo rearward in one system, combining downpipe, mid-pipe and cat-back into a single upgrade for the biggest gain in flow and the fullest change in exhaust note available on this platform.\u003c\/p\u003e\n\u003cp\u003eIt's the option for anyone who wants the complete Milltek transformation in a single fit, rather than building the system up piece by piece.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Front Pipe-back\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 No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 2 to 3 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\u003eReplaces the standard exhaust from the catalytic converter back, so the factory cat is retained\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 SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) (2021-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\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. 2 to 3 hours. Before ordering, note: Front Pipe Back System - Fits to OE Tailpipes - Does not require cutting - Does not fit models with fixed tailpipes. 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\u003eWill it fit the Audi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) 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 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\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 2 to 3 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":56392752726401,"sku":"MIL-SSXAU1027","price":4364.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU1027_1_c0e53d2a-d6fb-4d4d-a057-11414dd3698d.jpg?v=1791891739"},{"product_id":"milltek-cat-back-exhaust-audi-sq8-4-0-v8-bi-turbo-pre-facelift-non-opf-gpf-20-24","title":"Milltek Cat Back Exhaust Audi SQ8 4.0 V8 Bi-Turbo Pre-Facelift Non-OPF\/GPF 20-24","description":"\u003ch2\u003eMilltek Cat-back Exhaust for Audi SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) (2021 onwards) – Sharper Sound, Reduced Back Pressure\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's cat-back system for the Audi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift). 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, 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 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 No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 2 to 3 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\u003eReplaces the standard exhaust from the catalytic converter back, so the factory cat is retained\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 SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) (2021-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\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. 2 to 3 hours. Some versions: Cat Back System - Non Resonated (Loudest) - Fits to OE Tailpipes - Does not require cutting - Does not fit models with fixed tailpipes. Some versions: Cat Back System - Resonated - Fits to OE Tailpipes - Does not require cutting - Does not fit models with fixed tailpipes. 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 SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) 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 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\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 2 to 3 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":56392752759169,"sku":"MIL-SSXAU1025","price":5212.4,"currency_code":"GBP","in_stock":true},{"title":"Resonated","offer_id":56392752791937,"sku":"MIL-SSXAU1026","price":5267.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU1025_1_9532c460-710f-4809-a35b-e6dcebb9a06f.jpg?v=1791891741"},{"product_id":"milltek-active-suspension-control-audi-sq8-4-0-v8-bi-turbo-petrol-opf-gpf-pre-facelift-20-24","title":"Milltek Active Suspension Control Audi SQ8 4.0 V8 Bi-Turbo Petrol OPF\/GPF Pre-Facelift 20-24","description":"\u003ch2\u003eMilltek Active Suspension Control for Audi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models) (2020 onwards) – Valve Control for Air Suspension\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's active suspension control module for the pre-facelift, petrol OPF\/GPF Audi SQ8 4.0 V8 Bi-Turbo. It's a module that lets an existing Milltek valved system keep working correctly on a car fitted with adaptive air suspension, since the suspension's constant small ride-height changes would otherwise interfere with a standard valve setup. Depending on the application it's controlled via Bluetooth or a dedicated phone app.\u003c\/p\u003e\n\u003cp\u003eIt's a required addition alongside a valved Milltek system on these air-suspension-equipped models, not a standalone exhaust upgrade in its own right.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Active Suspension Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 1 to 2 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\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\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e Audi RSQ8 4.0 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. 1 to 2 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-decat-downpipe-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Downpipe \u0026amp; De-cat Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-front-pipe-back-exhaust-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Front Pipe-back Exhaust Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eWhat does it work with?\u003c\/h3\u003e\n\u003cp\u003eMilltek notes: \"With Bluetooth iOS and Android App Control\". Check this matches your current exhaust before ordering.\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. 1 to 2 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":56392752824705,"sku":"MIL-SSXAU1053","price":1460.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU1053_1_6b0ded3e-e9f5-402d-b0b8-aeca484a8214.jpg?v=1791891741"},{"product_id":"milltek-decat-downpipe-audi-sq8-4-0-v8-bi-turbo-petrol-opf-gpf-pre-facelift-20-24","title":"Milltek Decat Downpipe Audi SQ8 4.0 V8 Bi-Turbo Petrol OPF\/GPF Pre-Facelift 20-24","description":"\u003ch2\u003eMilltek Downpipe \u0026amp; De-cat for Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models) (2020 onwards) – Maximum Flow, Motorsport Use\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's large-bore downpipe and de-cat for the Audi SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift). 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 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. 3.5 to 4.5 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\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 RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models) (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) (2021-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models), which needs the \u003ca href=\"\/products\/milltek-decat-downpipe-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Downpipe \u0026amp; De-cat Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 3.5 to 4.5 hours. Before ordering, note: 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\u003eWill it fit the Audi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-decat-downpipe-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Downpipe \u0026amp; De-cat Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\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 a 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. 3.5 to 4.5 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":56392752857473,"sku":"MIL-SSXAU902","price":2558.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU902_1.jpg?v=1791891742"},{"product_id":"milltek-sports-cat-downpipes-audi-sq8-4-0-v8-bi-turbo-petrol-opf-gpf-pre-facelift-20-24","title":"Milltek Sports Cat Downpipes Audi SQ8 4.0 V8 Bi-Turbo Petrol OPF\/GPF Pre-Facelift 20-24","description":"\u003ch2\u003eMilltek Downpipes \u0026amp; Sports Cats for Audi RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models) (2020 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 SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift). 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 Large Bore Downpipes and Hi-Flow Sports Cats\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. 3.5 to 4.5 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\u003e76.2mm (3\") 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 RSQ8 4.0 V8 Bi-Turbo (OPF\/GPF Equipped Models) (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) (2021-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models), which needs the \u003ca href=\"\/products\/milltek-sports-cat-downpipes-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Downpipes \u0026amp; Sports Cats Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 3.5 to 4.5 hours. Before ordering, note: 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\u003eWill it fit the Audi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RSQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-sports-cat-downpipes-audi-rsq8-4-0-v8-bi-turbo-non-opf-gpf-20\"\u003eMilltek Downpipes \u0026amp; Sports Cats Audi RSQ8 4.0 V8 Bi-Turbo Non OPF\/GPF 20+\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: \"Requires a 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. 3.5 to 4.5 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":56392752988545,"sku":"MIL-SSXAU901","price":4109.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU901_1_457dc3e6-a91d-4e19-9f4e-9ad4365ad178.jpg?v=1791891748"},{"product_id":"milltek-filter-back-exhaust-audi-sq8-4-0-v8-bi-turbo-petrol-opf-gpf-pre-facelift-20-24","title":"Milltek Filter Back Exhaust Audi SQ8 4.0 V8 Bi-Turbo Petrol OPF\/GPF Pre-Facelift 20-24","description":"\u003ch2\u003eMilltek Filter-back Exhaust for Audi SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) (2021 onwards) – Sharper Sound, Filter Retained\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's particulate filter-back system for the Audi SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift). It replaces everything downstream of the factory diesel or petrol particulate filter with wider-bore pipework and re-tuned silencers, cutting back pressure and sharpening the exhaust note. The filter itself is left exactly where the manufacturer fitted it, so emissions equipment is unaffected. It's offered in resonated EC approved, non-resonated or resonated versions, so you can pick the setup that suits how the car's used.\u003c\/p\u003e\n\u003cp\u003eIt's the right choice if you want a sportier sound and a genuine, if modest, flow improvement on a filter-equipped car, without going anywhere near the parts of the system that keep it emissions-compliant.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Particulate Filter-back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 76.2mm (3\")\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 3 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\u003eFits behind the factory particulate filter, which stays in place\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 SQ7 4.0 V8 TT (Gasoline Non-OPF Equipped Vehicles Pre Facelift) (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) (2021-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Non OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\u003c\/li\u003e\n\u003cli\u003eAudi SQ8 4.0 V8 Bi-Turbo (Petrol OPF\/GPF Equipped Models Pre Facelift) (2020-2024)\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. 2 to 3 hours. Some versions: Front Pipe Back System - Fits to OE Tailpipes - Does not require cutting - ECE Approved - Does not fit models with fixed tailpipes. Some versions: OPF\/GPF Back System - Non Resonated (Loudest) - Fits to OE Tailpipes - Does not require cutting - Does not fit models with fixed tailpipes. Some versions: OPF\/GPF Back System - Resonated - Fits to OE Tailpipes - Does not require cutting - Does not fit models with fixed tailpipes. 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 SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi SQ7 4.0 V8 TT (Petrol OPF\/GPF Equipped Vehicles Pre Facelift) 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 particulate filter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eDoes it keep the factory particulate filter?\u003c\/h3\u003e\n\u003cp\u003eYes. It fits behind the factory particulate filter, 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 3 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":"Resonated - EC Approved","offer_id":56392753086849,"sku":"MIL-SSXAU1027","price":4364.98,"currency_code":"GBP","in_stock":true},{"title":"Non-Resonated","offer_id":56392753119617,"sku":"MIL-SSXAU1025","price":5212.4,"currency_code":"GBP","in_stock":true},{"title":"Resonated","offer_id":56392753152385,"sku":"MIL-SSXAU1026","price":5267.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU1027_1_52820546-7c02-4ca0-a128-a4285685ad74.jpg?v=1791891755"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/collections\/audi-sq8.jpg?v=1791897552","url":"https:\/\/milltekexhaustshop.com\/collections\/audi-sq8-performance-exhaust-systems.oembed","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}