{"product_id":"milltek-resonated-cat-back-exhaust-for-audi-b9-s5-coupe-polished-tips-ssxau679","title":"Milltek Resonated Cat-Back Exhaust for Audi B9 S5 Coupe, Polished Tips","description":"\u003cp\u003eThe Milltek Resonated Cat-Back Exhaust System is engineered for the Audi B9 S5 3.0 V6 Turbo Coupe and Cabriolet (Non-Sport Diff models only). Direct factory fitment using OEM hangers and mounting points-no modifications required.\u003c\/p\u003e\n\u003cp\u003eHand-finished T304L stainless steel construction with mandrel-bent 2.50\" (63.50mm) diameter piping. Resonated design eliminates drone while preserving full-throttle character, tuned to the EA839 engine's natural resonance points for an OE+ tone. Quad GT-100 polished trims with precision CNC-formed collectors. Uses factory valve compatibility where applicable.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi B9 S5 Coupe 2017-2024\u003c\/li\u003e\n\u003cli\u003eAudi B9 S5 Cabriolet 2017-2024\u003c\/li\u003e\n\u003cli\u003eNon-Sport Differential models only\u003c\/li\u003e\n\u003cli\u003e3.0L V6 Turbo (EA839)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Cat-back design: replaces rear section from secondary catalytic converter rearward. Retains OEM front components and secondary cats. \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\u003e2017-2023 Audi S5 Base\u003c\/li\u003e\n\u003cli\u003e2018-2023 Audi S5 Premium Plus\u003c\/li\u003e\n\u003cli\u003e2018-2023 Audi S5 Prestige\u003c\/li\u003e\n\u003cli\u003e2019-2023 Audi S5 Premium\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150600270110,"sku":"MILSSXAU679","price":3752.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU679_1.jpg?v=1791252961","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-resonated-cat-back-exhaust-for-audi-b9-s5-coupe-polished-tips-ssxau679","provider":"Signature Autohaus","version":"1.0","type":"link"}