{"title":"S8 D5 (2019-2026)","description":null,"products":[{"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"},{"product_id":"milltek-sport-audi-s8-d5-4-0-tfsi-v8-opf-gpf-gpf-back-exhaust-system","title":"Milltek Sport Audi S8 D5 4.0 TFSI V8 (OPF\/GPF) GPF-Back Exhaust System","description":"\u003cp dir=\"ltr\"\u003eMilltek Sport's GPF-back exhaust for the Audi S8 D5 4.0 TFSI V8, OPF\/GPF, replaces everything from the gasoline particulate filter rearward, engineered to deliver genuine gains in flow, sound, and weight over the factory system while retaining the OPF\/GPF unit itself for continued emissions compliance. Constructed from T-304 stainless steel throughout, this system is built to outlast the car itself, resisting the corrosion that eventually catches up with mild steel factory systems.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eMilltek's own sound engineers spend considerable time tuning each system's resonance and tone, striking a genuine balance between a purposeful, sporting character and the genuinely refined everyday drivability the S8 flagship has always been built around, avoiding the drone that can plague poorly engineered aftermarket systems on a long motorway drive.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePlease select your type and exhaust tip finish at checkout:\u003c\/strong\u003e Resonated (the more refined, restrained everyday character) or Non-Resonated (noticeably louder and more aggressive), each available in Twin 80mm GT115 Polished, Cerakote Black, Titanium, or Burnt Titanium, or the distinctive Twin 80mm JET115 Carbon finish.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eWhy Choose This GPF-Back Exhaust\u003c\/h2\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eGenuine gains in flow, sound, and weight over the factory system\u003c\/li\u003e\n\u003cli\u003eT-304 stainless steel construction throughout, built to outlast the factory system\u003c\/li\u003e\n\u003cli\u003eRetains the OPF\/GPF unit for continued emissions compliance\u003c\/li\u003e\n\u003cli\u003eDistinctive twin 80mm tailpipes across five finish options\u003c\/li\u003e\n\u003cli\u003eMilltek's own sound engineering, avoiding unwanted drone\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":"Resonated \/ Twin 80mm GT115 Polished","offer_id":54701663355213,"sku":"SSXAU943","price":6470.17,"currency_code":"EUR","in_stock":false},{"title":"Resonated \/ Twin 80mm GT115 Cerakote Black","offer_id":54701663387981,"sku":"SSXAU944","price":6876.11,"currency_code":"EUR","in_stock":false},{"title":"Resonated \/ Twin 80mm GT115 Titanium","offer_id":54701663420749,"sku":"SSXAU945","price":7180.56,"currency_code":"EUR","in_stock":false},{"title":"Resonated \/ Twin 80mm GT115 Burnt Titanium","offer_id":54701663453517,"sku":"SSXAU946","price":7389.71,"currency_code":"EUR","in_stock":false},{"title":"Resonated \/ Twin 80mm JET115 Carbon","offer_id":54701663486285,"sku":"SSXAU947","price":7293.18,"currency_code":"EUR","in_stock":false},{"title":"Non-Resonated \/ Twin 80mm GT115 Polished","offer_id":54701663519053,"sku":"SSXAU948","price":6233.79,"currency_code":"EUR","in_stock":false},{"title":"Non-Resonated \/ Twin 80mm GT115 Cerakote Black","offer_id":54701663551821,"sku":"SSXAU949","price":6639.72,"currency_code":"EUR","in_stock":false},{"title":"Non-Resonated \/ Twin 80mm GT115 Titanium","offer_id":54701663584589,"sku":"SSXAU950","price":6944.17,"currency_code":"EUR","in_stock":false},{"title":"Non-Resonated \/ Twin 80mm GT115 Burnt Titanium","offer_id":54701663617357,"sku":"SSXAU951","price":7153.33,"currency_code":"EUR","in_stock":false},{"title":"Non-Resonated \/ Twin 80mm JET115 Carbon","offer_id":54701663650125,"sku":"SSXAU952","price":7056.8,"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_GPF-Back_Exhaust_System.webp?v=1789027241"}],"url":"https:\/\/i6tuning.com\/collections\/s8-d5-2019-2026.oembed","provider":"i6 Tuning","version":"1.0","type":"link"}