Milltek Non-Resonated Cat-Back Exhaust - Audi B9 S5 Coupe - Polished Tips - SSXAU685

Milltek Non-Resonated Cat-Back Exhaust System for Audi B9 S5 3.0 V6 Turbo Coupe and Cabriolet (Non-Sport Diff models). Direct factory fitment replacement with 2.50" mandrel-bent T304L stainless steel construction and quad GT-100 polished outlet trims.

Hand-finished T304L stainless steel throughout. 2.50" (63.50mm) pipe diameter maximizes exhaust scavenging. Non-resonated design eliminates OE silencer for aggressive full-throttle character and enhanced mid-range response. Uses OEM hangers and mounting points-no modification required. Quad polished GT-100 trims finished to showroom standard.

Fitment

• Audi B9 S5 Coupe (3.0 V6 TFSI, 2017-2024)
• Audi B9 S5 Cabriolet (3.0 V6 TFSI, 2017-2024)
• Non-Sport Differential models only
• Cat-back system-factory downpipe and cats retained

Engineered in-house and dyno-proven for measurable torque gains across the power band. Every system hand-finished to OEM+ standards before dispatch.

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.