{"product_id":"milltek-non-resonated-quad-outlet-cat-back-exhaust-for-ford-mustang-s550-2-3-ecoboost-roush-valance-polished-tips-ssxfd178","title":"Milltek Non-Resonated Quad-Outlet Cat-Back Exhaust for Ford Mustang S550 2.3 EcoBoost (Roush Valance), Polished Tips","description":"\u003cp\u003eMilltek Non-Resonated Cat-Back Exhaust System for Ford Mustang 2.3L S550 Fastback. Direct factory fitment replacement using OEM hangers, no modification required. Engineered to deliver a more aggressive tone and elevated volume through mandrel-bent T304L stainless steel construction with quad GT-90 polished outlet trims.\u003c\/p\u003e\u003cp\u003eHand-finished T304L stainless steel construction ensures durability across all conditions. This non-resonated configuration is optimized for closed-course and track use, eliminating mid-range resonance for a focused, full-throttle character. Direct fit for Roush Performance rear valance applications. All systems are dyno-tested to confirm performance and acoustic tuning before dispatch.\u003c\/p\u003e\u003cp\u003eMilltek Cat-Back systems for the S550 Mustang are available in resonated and non-resonated configurations, allowing you to tailor both volume and tone character to your preference. Choose non-resonated for maximum aggression, or resonated for refined sound control on the street.\u003c\/p\u003e\n\u003cp\u003eDesigned in Tennessee and manufactured in the UK with 40+ years of performance exhaust heritage. Tested on the Tail of the Dragon.\u003c\/p\u003e\n\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n\u003cul class=\"fitment-list\"\u003e\n\u003cli\u003e2015-2017 Ford Mustang V6\u003c\/li\u003e\n\u003cli\u003e2015-2018 Ford Mustang Base\u003c\/li\u003e\n\u003cli\u003e2015-2018 Ford Mustang EcoBoost\u003c\/li\u003e\n\u003cli\u003e2015-2018 Ford Mustang EcoBoost Premium\u003c\/li\u003e\n\u003cli\u003e2015-2018 Ford Mustang GT\u003c\/li\u003e\n\u003cli\u003e2015-2018 Ford Mustang GT Premium\u003c\/li\u003e\n\u003cli\u003e2015-2018 Ford Mustang Shelby GT350\u003c\/li\u003e\n\u003cli\u003e2015-2018 Ford Mustang Shelby GT350R\u003c\/li\u003e\n\u003cli\u003e2015 Ford Mustang GT 50 Years Limited Edition\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150861529374,"sku":"MILSSXFD178","price":2475.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXFD178_1.jpg?v=1791256566","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-non-resonated-quad-outlet-cat-back-exhaust-for-ford-mustang-s550-2-3-ecoboost-roush-valance-polished-tips-ssxfd178","provider":"Signature Autohaus","version":"1.0","type":"link"}