Milltek Non-Resonated Cat-Back - Audi B9 S5 Sportback - Polished Tips - SSXAU1113

Direct factory fitment non-resonated cat-back exhaust for Audi B9 S5 Sportback with Sports Differential and Factory Brace Bars. Hand-finished T304L stainless steel system engineered to deliver maximum sound character and performance gains on closed-course and track applications.

Mandrel-bent 2.5" diameter piping with CNC-formed quad polished tips (4" GT-100 round or quad oval available in polished stainless or Cerakote Black finish). Direct bolt-on replacement using OEM hangers and mounting points-no modification required. Non-resonated design eliminates mid-range drone characteristic of resonated systems, delivering full-throttle engagement across the entire powerband.

Fitment & Configuration

• Audi B9 S5 Sportback (2019+) with Sports Differential and Factory Brace Bars
• Cat-back system: factory cat retention, OEM+ fitment
• Tip options: GT-100 round (4" diameter) or quad oval polished stainless/Cerakote Black
• Hand-finished and decibel-tested for engineered tone character

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 Only B9 (Sport Diff Models Only & WITH Brace Bars) - Left Hand Drive Cars Only > 2017 and Later
• Audi > S5 > 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & WITH Brace Bars) - 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.