Milltek Non-Resonated Cat-Back Exhaust - Audi B9 S5 Coupe - Carbon Fibre Tips - SSXAU684

Milltek Non-Resonated Cat-Back Exhaust System for Audi B9 S5 3.0 V6 Turbo Coupe and Cabriolet (Non-Sport Differential models only). Direct factory fitment replacement using OEM hangers, no modification required.

Hand-finished T304L stainless steel construction with mandrel-bent 2.50" (63.50mm) diameter piping. Quad JET-100 carbon fiber trim outlets. Non-resonated design engineered for aggressive full-throttle character and elevated tone at cruising speeds. OEM+ fitment preserves all factory suspension and component clearances.

Fitment

• Audi B9 S5 Coupe (2017-2023) - 3.0L TFSI EA839 engine
• Audi B9 S5 Cabriolet (2017-2023) - 3.0L TFSI EA839 engine
• Non-Sport Differential models only
• Cat-back system: retains OEM catalytic converters and secondary cats

Dyno-proven performance gains with engineered sound character tuned to the B9 S5's flat-plane V6 resonance.

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 > S5 > 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) > 2017 to 2023

• 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.