{"product_id":"milltek-80mm-race-non-resonated-cat-back-for-audi-rs3-8y-ssxau974","title":"Milltek 80mm Race Non-Resonated Cat-Back for Audi RS3 8Y","description":"\u003cp\u003eThe Milltek 80mm Race Non-Resonated Cat-Back Exhaust is engineered for the Audi 8Y RS3 (2021+) as a direct OPF\/GPF-back system. This is our loudest cat-back option, delivering maximum volume enhancement with race-spec performance.\u003c\/p\u003e\n\u003cp\u003eConstructed from T304L stainless steel and mandrel-bent for optimal flow, this system features a race-spec rear silencer for reduced weight and aggressive exhaust character. Direct factory fitment uses OEM hangers-no modification required. The 80mm (3.15\") large bore diameter maximizes scavenging and supports peak power delivery across the RPM range.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi RS3 8Y Saloon\/Sedan (2021+)\u003c\/li\u003e\n\u003cli\u003eOPF\/GPF-back configuration\u003c\/li\u003e\n\u003cli\u003eDirect replacement, uses OEM mounting points\u003c\/li\u003e\n\u003cli\u003eNon-resonated design for closed-course\/track use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Every system is dyno-tested and engineered for measurable flow improvement alongside authentic 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\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n\u003cul class=\"fitment-list\"\u003e\n\u003cli\u003e2022-2026 Audi RS3 Base\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150645195038,"sku":"MILSSXAU974","price":3697.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU974_1.jpg?v=1791254204","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-80mm-race-non-resonated-cat-back-for-audi-rs3-8y-ssxau974","provider":"Signature Autohaus","version":"1.0","type":"link"}