{"product_id":"milltek-80mm-non-resonated-opf-back-exhaust-audi-d5-s8-polished-tips-ssxau948","title":"80mm Non-Resonated OPF-Back Exhaust | Audi D5 S8 | Milltek","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMilltek 80mm Cat Back Non-Resonated OPF-Back Exhaust System for Audi D5 S8 4.0 TFSI V8 (2020+). Direct factory fitment replacement with T304L stainless steel construction, 80mm mandrel-bent piping, and GT-115 polished trims. Non-resonated design engineered for track-focused tone on closed-course applications.\u003c\/p\u003e\n\u003cp\u003eHand-finished T304L stainless steel (thicker gauge than T304L) resists thermal stress and corrosion. 80mm bore diameter optimizes exhaust velocity without sacrificing scavenging. Non-resonated architecture eliminates OE resonance chambers, delivering full-throttle character with pronounced mid-range and top-end note. Direct OEM hanger compatibility ensures installation without modification.\u003c\/p\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003ch3\u003eFitment Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S8 D5 4.0 TFSI V8 Saloon (2020+)\u003c\/li\u003e\n\u003cli\u003eAudi S8 D5 4.0 TFSI V8 Saloon Standard Wheelbase (2020+)\u003c\/li\u003e\n\u003cli\u003eOPF-back configuration (GPF-compatible)\u003c\/li\u003e\n\u003cli\u003eUses OEM hangers and mounting points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Every system is hand-finished and dyno-validated to deliver measurable performance gains alongside engineered sound character. \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\u003ch2\u003eFitment\u003c\/h2\u003e","brand":"Milltek","offers":[{"title":"Polished","offer_id":68005561237806,"sku":"SSXAU948","price":5451.54,"currency_code":"USD","in_stock":true},{"title":"Cerakote Black","offer_id":68013206536494,"sku":"SSXAU949","price":5808.07,"currency_code":"USD","in_stock":false},{"title":"Brushed Titanium","offer_id":68013206569262,"sku":"SSXAU950","price":6073.64,"currency_code":"USD","in_stock":false},{"title":"Burnt Titanium","offer_id":68013206602030,"sku":"SSXAU951","price":6255.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/1719\/1726\/files\/SSXAU948_1.jpg?v=1794452110","url":"https:\/\/shopicwp.com\/products\/milltek-80mm-non-resonated-opf-back-exhaust-audi-d5-s8-polished-tips-ssxau948","provider":"Inner Circle Wheels and Performance","version":"1.0","type":"link"}