{"product_id":"milltek-non-resonated-cat-back-exhaust-audi-b9-s4-s5-cerakote-black-tips-ssxau658","title":"Milltek Non-Resonated Cat-Back Exhaust | Audi B9 S4 S5 - Cerakote Black Tips","description":"\u003cp\u003eMilltek 2.50\" Non-Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (non-sport differential models). Direct factory fitment replacement engineered to amplify exhaust note and improve flow dynamics.\u003c\/p\u003e\n\u003cp\u003eConstructed from T304L stainless steel, hand-finished with quad GT-90 Cerakote Black tips. Mandrel-bent 63.5mm (2.50\") primary pipes eliminate resonance points for full-throttle character. Uses OEM hangers and mounting points-no modification required. Non-resonated design delivers aggressive tone suited for closed-course and track use; street legality varies by jurisdiction.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S4 3.0L Turbo V6 B9 Saloon\/Sedan \u0026amp; Avant (non-sport differential) 2016+\u003c\/li\u003e\n\u003cli\u003eAudi S5 3.0L Turbo V6 B9 Sportback (non-sport differential) 2017+\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":51360553894111,"sku":"SSXAU658","price":3759.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8496\/9183\/files\/SSXAU658_1.jpg?v=1789002585","url":"https:\/\/egtuning.com\/products\/milltek-non-resonated-cat-back-exhaust-audi-b9-s4-s5-cerakote-black-tips-ssxau658","provider":"Egor's Garage Tuning ","version":"1.0","type":"link"}