Milltek Resonated Cat-Back Exhaust - Audi B9 S5 Coupe - Cerakote Black Tips - SSXAU680

Milltek Resonated Cat-Back Exhaust System for Audi B9 S5 3.0 V6 Turbo Coupe and Cabrio (non-Sport Diff models). Direct factory fitment using OEM hangers and brackets-no modification required.

Hand-finished T304L stainless steel construction with mandrel-bent 2.50" (63.50mm) diameter piping and quad GT-100 polished black trims. The resonated design eliminates drone while preserving full-throttle character and OE+ sound profile. Uses OEM valve compatibility for seamless integration.

Fitment

• Audi B9 S5 Coupe (2017-2024)
• Audi B9 S5 Cabrio (2017-2024)
• Non-Sport Differential models only
• 3.0L TFSI V6 engine (EA839)

Cat-back design: factory turbocharger and catalytic converters remain in place. Direct OEM+ fitment with no welding, cutting, or suspension modification.

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
• E-marked for road use

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.