{"product_id":"milltek-non-resonated-cat-back-exhaust-for-audi-b9-s4-s5-polished-tips-ssxau700-ssxau700","title":"Milltek Non-Resonated Cat-Back Exhaust for Audi B9 S4 S5, Polished Tips (SSXAU700)","description":"\u003cp\u003eMilltek 2.50\" Non-Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 3.0 V6 Turbo. Direct factory fitment for Sport Differential models without brace bars. Hand-finished T304L stainless steel with quad GT-100 polished tips. Mandrel-bent construction engineered for maximum exhaust flow and aggressive sound character.\u003c\/p\u003e\n\u003cp\u003eConstructed entirely from T304L stainless steel with CNC-formed GT-100 polished triple-wall tips. Uses OEM hangers and mounting points-no modification required. Non-resonated design eliminates mid-range drone points for a full-throttle tone without cabin resonance at cruise. Dyno-proven gains in mid-range torque across the 3.0 V6 Turbo EA839 engine platform.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S4 B9 Sedan\/Avant (2016+) - Sport Diff models only, without brace bars\u003c\/li\u003e\n\u003cli\u003eAudi S5 B9 Sportback (2017+) - Sport Diff models only, without brace bars\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Every system is hand-finished, tested for fitment and acoustic signature, and manufactured to OEM+ standards. This non-resonated cat-back delivers the engineered tone character that separates precision stainless fabrication from off-the-shelf alternatives. \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\u003e2016 Audi S4 Base\u003c\/li\u003e\n\u003cli\u003e2016 Audi S4 Premium Plus\u003c\/li\u003e\n\u003cli\u003e2016 Audi S4 Prestige\u003c\/li\u003e\n\u003cli\u003e2017-2023 Audi S5 Base\u003c\/li\u003e\n\u003cli\u003e2018-2024 Audi S4 Base\u003c\/li\u003e\n\u003cli\u003e2018-2025 Audi S4 Premium Plus\u003c\/li\u003e\n\u003cli\u003e2018-2025 Audi S4 Prestige\u003c\/li\u003e\n\u003cli\u003e2018-2025 Audi S5 Premium Plus\u003c\/li\u003e\n\u003cli\u003e2018-2025 Audi S5 Prestige\u003c\/li\u003e\n\u003cli\u003e2019-2025 Audi S4 Premium\u003c\/li\u003e\n\u003cli\u003e2019-2025 Audi S5 Premium\u003c\/li\u003e\n\u003cli\u003e2026 Audi S4 Base\u003c\/li\u003e\n\u003cli\u003e2026 Audi S5 Base\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150601810206,"sku":"MILSSXAU700","price":3507.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU700_1.jpg?v=1791253133","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-non-resonated-cat-back-exhaust-for-audi-b9-s4-s5-polished-tips-ssxau700-ssxau700","provider":"Signature Autohaus","version":"1.0","type":"link"}