{"product_id":"milltek-80mm-large-bore-downpipe-hi-flow-sports-cat-for-audi-rs6-c8-for-audi-s8-audi-rs7-sportback-audi-rs6-avant-ssxau910","title":"Milltek 80mm Large Bore Downpipe \u0026 Hi-Flow Sports Cat for Audi RS6 C8 for Audi S8, Audi RS7 Sportback, Audi RS6 Avant","description":"\u003cp\u003eThe Milltek 80mm Cat Back Large Bore Downpipe \u0026amp; Hi-Flow Sports Cat is a turbo-back component engineered for Audi RS6 C8, RS7 C8, and S8 D5 models (2019+). This system optimizes exhaust flow from the turbos to the catalytic converter, designed to pair with OE or Milltek cat-back exhausts.\u003c\/p\u003e\n\u003cp\u003eConstructed from T304L stainless steel with a mandrel-bent 3.15\" (80mm) bore and Milltek's high-flow 200 CPSI catalyst, this downpipe delivers measurable gains in boost response and mid-range torque. Direct fitment uses OEM hangers and mounting points—no modification required. Stage 2 ECU software is required for full optimization.\u003c\/p\u003e\n\u003ch3\u003eFitment:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS6 C8 4.0L V8 bi-turbo (2020+) — Performance Edition\u003c\/li\u003e\n\u003cli\u003eAudi RS7 C8 4.0L V8 bi-turbo (2019+)\u003c\/li\u003e\n\u003cli\u003eAudi S8 D5 4.0 TFSI V8 Sedan — Standard wheelbase (2020+)\u003c\/li\u003e\n\u003cli\u003eAudi S8 D5 4.0 TFSI V8 Sedan — Long wheelbase (2020+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFits OE Cat-Back.\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.\u003c\/p\u003e\n\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n\u003cul class=\"fitment-list\"\u003e\n\u003cli\u003e2020-2026 Audi S8 Base\u003c\/li\u003e\n\u003cli\u003e2021-2025 Audi RS7 Sportback Base\u003c\/li\u003e\n\u003cli\u003e2021-2026 Audi RS6 Avant Performance\u003c\/li\u003e\n\u003cli\u003e2024-2026 Audi RS7 Sportback Performance\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150639493406,"sku":"MILSSXAU910","price":6467.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU910_1.jpg?v=1791253962","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-80mm-large-bore-downpipe-hi-flow-sports-cat-for-audi-rs6-c8-for-audi-s8-audi-rs7-sportback-audi-rs6-avant-ssxau910","provider":"Signature Autohaus","version":"1.0","type":"link"}