{"product_id":"milltek-hi-flow-sports-cat-for-audi-rs3-8v-ssxau771","title":"Milltek Hi-Flow Sports Cat for Audi RS3 8V","description":"\u003cp\u003eECE-approved hi-flow sports cat designed for European road use (R103 compliant). T304L stainless steel construction with 200–300 cell density provides unrestricted exhaust flow without requiring ECU recalibration or triggering diagnostic codes. Direct fitment with OEM cat-back systems and Milltek cat-back exhausts.\u003c\/p\u003e\u003cp\u003eHand-finished T304L stainless steel core with CNC-formed housings. EC Type Approval ensures full street legality across Europe. No software modifications required—bolt-on installation using existing hangers and O2 sensor locations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with OEM factory cat-back systems\u003c\/li\u003e\n\u003cli\u003eCompatible with Milltek cat-back exhaust systems\u003c\/li\u003e\n\u003cli\u003eRetains OE oxygen sensor and diagnostics\u003c\/li\u003e\n\u003cli\u003eNo ECU tune or check engine light risk\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Engineered for sustained flow and reliability on both road and circuit. \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\u003e2017-2020 Audi RS3 Base\u003c\/li\u003e\n\u003cli\u003e2018-2022 Audi TT RS Quattro Base\u003c\/li\u003e\n\u003cli\u003e2022-2026 Audi RS3 Base\u003c\/li\u003e\n\u003cli\u003e2022 Audi TT RS Quattro Heritage Edition\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150635888926,"sku":"MILSSXAU771","price":4821.42,"currency_code":"USD","in_stock":true}],"url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-hi-flow-sports-cat-for-audi-rs3-8v-ssxau771","provider":"Signature Autohaus","version":"1.0","type":"link"}