{"product_id":"milltek-resonated-cat-back-exhaust-for-audi-b9-s4-s5-cerakote-black-tips-ssxau699-ssxau699","title":"Milltek Resonated Cat-Back Exhaust for Audi B9 S4 S5, Cerakote Black Tips (SSXAU699)","description":"\u003cp\u003eMilltek Resonated Cat-Back Exhaust System for Audi B9 S4 (2016+) and S5 Sportback (2017+) 3.0 V6 Turbo. Direct factory fitment for Sport Differential models without brace bars. 2.50\" (63.50mm) mandrel-bent T304L stainless steel construction with quad Cerakote Black oval trims.\u003c\/p\u003e\n\u003cp\u003eHand-finished T304L stainless steel with engineered resonance tuning. OEM-compatible hangers, uses stock mounting points. No modification required. Quad outlet design with Cerakote Black finish. Dyno-proven flow characteristics deliver enhanced throttle response while maintaining OE+ sound character-sportier than stock, refined for daily driving.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S4 B9 Saloon\/Sedan \u0026amp; 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\u003cli\u003eEngine: 3.0 V6 Turbo (EA839)\u003c\/li\u003e\n\u003cli\u003eCat-back system (retains factory catalytic converter)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e EC Approved construction ensures durability and emissions compliance. Every system hand-finished to OEM+ standards. \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":60150601777438,"sku":"MILSSXAU699","price":4236.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU699_1.jpg?v=1791253126","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-resonated-cat-back-exhaust-for-audi-b9-s4-s5-cerakote-black-tips-ssxau699-ssxau699","provider":"Signature Autohaus","version":"1.0","type":"link"}