Milltek Non-Resonated Cat-Back Exhaust - Audi B9 S4 S5 - Cerakote Black Tips - SSXAU701

The Milltek 2.50" Non-Resonated Cat-Back Exhaust System is engineered for the Audi B9 S4 and S5 3.0 V6 Turbo (Sport Differential models without brace bars). This direct-fit replacement delivers enhanced exhaust flow and an aggressive, pronounced tone character.

Constructed from T304L stainless steel with CNC-formed quad GT-100 Cerakote Black trims, this system uses OEM hangers and requires no modification for installation. The non-resonated design eliminates stock resonance chambers, maximizing full-throttle note intensity while maintaining OEM+ fitment precision.

Fitment Details:

• Audi S4 B9 Saloon/Sedan & Avant (2016+) - Sport Differential, no brace bars
• Audi S5 B9 Sportback (2017+) - Sport Differential, no brace bars
• 2.50" (63.5mm) mandrel-bent T304L stainless construction
• Quad outlet configuration with hand-finished Cerakote Black GT-100 trim
• Direct factory fitment - no cutting or welding required

Milltek exhaust systems are engineered and tested for fitment and performance across European, Japanese, and American platforms.

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 - Sport Diff Models Only & Without Brace Bars) - Left Hand Drive Cars Only > 2016 and Later
• Audi > S5 > 3.0 V6 Turbo Sportback B9 (ONLY - Sport Diff Models Only & without 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.