{"product_id":"milltek-sport-audi-s8-d5-4-0-tfsi-v8-opf-gpf-large-bore-downpipes-and-hi-flow-sports-cats","title":"Milltek Sport Audi S8 D5 4.0 TFSI V8 (OPF\/GPF) Large Bore Downpipes and Hi-Flow Sports Cats","description":"\u003cp dir=\"ltr\"\u003eMilltek Sport's Large Bore Downpipes and Hi-Flow Sports Cats for the Audi S8 D5 4.0 TFSI V8, OPF\/GPF, UK\/Euro Models, combine two upgrades in one package, genuinely larger-diameter downpipes paired with higher-flow metal substrate cats, replacing the factory catalytic converters with something that flows considerably better while still retaining meaningful emissions control. This is a sensible middle-ground option for owners wanting a substantial flow improvement without going the full de-cat route.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eConstructed from T-304 stainless steel throughout, this system is built to outlast the factory components it replaces, resisting the corrosion that eventually catches up with mild steel factory parts. Reducing backpressure across both the downpipe and catalytic converter sections at once delivers a more complete performance upgrade than addressing either section individually, particularly noticeable when paired with a supporting ECU tune.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePlease select your fitment at checkout:\u003c\/strong\u003e Fits to OE System or Fits to Milltek Sport System, depending on whether you're retaining the factory exhaust downstream or already running a Milltek system.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eWhy Choose These Downpipes and Hi-Flow Sports Cats\u003c\/h2\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eCombines larger-bore downpipes with higher-flow sports cats in one package\u003c\/li\u003e\n\u003cli\u003eRetains meaningful catalytic converter function, unlike a full de-cat pipe\u003c\/li\u003e\n\u003cli\u003eT-304 stainless steel construction throughout, built for long-term durability\u003c\/li\u003e\n\u003cli\u003eAvailable matched to either OE or Milltek Sport downstream systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eCompatibility\u003c\/h2\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eAudi S8 (D5) 4.0 TFSI V8 (OPF\/GPF)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek Sport","offers":[{"title":"Fits to OE System","offer_id":54701663224141,"sku":"SSXAU869","price":5963.99,"currency_code":"EUR","in_stock":false},{"title":"Fits to Milltek Sport System","offer_id":54701663256909,"sku":"SSXAU868","price":5985.03,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4808\/2253\/files\/Milltek_Sport_Audi_S8_D5_4.0_TFSI_V8_OPF_GPF_Large_Bore_Downpipes_and_Hi-Flow_Sports_Cats.webp?v=1789026924","url":"https:\/\/i6tuning.com\/products\/milltek-sport-audi-s8-d5-4-0-tfsi-v8-opf-gpf-large-bore-downpipes-and-hi-flow-sports-cats","provider":"i6 Tuning","version":"1.0","type":"link"}