Milltek Non-Resonated Cat-Back Exhaust - Audi B9 S4 S5 - Polished Tips - SSXAU655

Milltek Non-Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (Non Sport Diff models). Direct factory fitment using OEM hangers; no modification required. 2.50" (63.50mm) mandrel-bent T304L stainless steel pipe with quad GT-90 polished tips.

Hand-finished T304L stainless construction resists corrosion and thermal cycling. Non-resonated design eliminates factory silencer constraints, tuning the exhaust note for full-throttle character without drone at cruise. Dyno-tested for measurable flow improvement over OEM.

Fitment

• Audi S4 3.0 Turbo V6 (TFSI) B9 Saloon/Sedan - 2016+
• Audi S4 3.0 Turbo V6 (TFSI) B9 Avant - 2016+
• Audi S5 3.0 Turbo V6 (TFSI) B9 Sportback - 2017+
• Non Sport Differential models only

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Specifications

• Pipe diameter: 63.5mm (2.50")
• Fitting time: 1 to 1.5 hours, including removing the factory system

Fitment

• Audi > S4 > 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
• Audi > S5 > 3.0 V6 Turbo Sportback B9 (ONLY - Non Sport Diff Models Only) - Left Hand Drive Cars Only > 2017 and Later

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.