{"product_id":"milltek-sports-cat-downpipe-audi-rs3-sportback-8v-facelift-opf-gpf-19","title":"Milltek Sports Cat Downpipe Audi RS3 Sportback 8V Facelift OPF\/GPF 19+","description":"\u003ch2\u003eMilltek Downpipe \u0026amp; Sports Cat for Audi RS3 Saloon\/Sedan 400PS (8V MQB) - 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 RS3 Sportback 400PS (8V MQB - Facelift Only) - 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 Large Bore Downpipe and Hi-Flow Sports 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\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 RS3 Saloon\/Sedan 400PS (8V MQB) - OPF\/GPF Models (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS3 Saloon\/Sedan 400PS (8Y MQB EVO) - OPF\/GPF Models (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS3 Sportback 400PS (8V MQB - Facelift Only) - OPF\/GPF Models (2019 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RS3 Sportback 400PS (8Y MQB EVO) - OPF\/GPF Models (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi RSQ3 2.5T Sportback \u0026amp; SUV (OPF\/GPF Equipped Models Only) (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi TT Mk3 TTRS 2.5TFSI Quattro (OPF\/GPF Models) (2019 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Audi RS3 Saloon\/Sedan 400PS (8V MQB) - Non-OPF\/GPF Models, which needs the \u003ca href=\"\/products\/milltek-hjs-tuning-ece-downpipes-audi-rs3-saloon-400ps-8v-mqb-non-opf-gpf-17\"\u003eMilltek HJS Tuning ECE Downpipes Audi RS3 Saloon 400PS 8V MQB Non-OPF\/GPF 17+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, note: Fits both OE and Milltek Sport Cat Back Systems - Requires Stage 2 ECU Software. 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-filter-back-exhaust-audi-rs3-sportback-8y-opf-gpf-21\"\u003eMilltek Filter-back Exhaust Audi RS3 Sportback 8Y OPF\/GPF 21+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi RS3 Saloon\/Sedan 400PS (8Y MQB EVO) - OPF\/GPF Models?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi RS3 Saloon\/Sedan 400PS (8Y MQB EVO) - OPF\/GPF Models as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Audi RS3 Saloon\/Sedan 400PS (8V MQB) - Non-OPF\/GPF Models?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-hjs-tuning-ece-downpipes-audi-rs3-saloon-400ps-8v-mqb-non-opf-gpf-17\"\u003eMilltek HJS Tuning ECE Downpipes Audi RS3 Saloon 400PS 8V MQB Non-OPF\/GPF 17+\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: \"Fits both OE and Milltek Sport Cat Back Systems - Requires Stage 2 ECU Software\". 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\u003eIt depends on the version. Some are made for the factory (OE) system and others for the Milltek cat-back, so check the notes for the option you choose.\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":56392687354241,"sku":"MIL-SSXAU818","price":1522.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU818_1_f0569b0a-4448-40c9-94f0-deb2960a9cf7.jpg?v=1791890672","url":"https:\/\/milltekexhaustshop.com\/products\/milltek-sports-cat-downpipe-audi-rs3-sportback-8v-facelift-opf-gpf-19","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}