Milltek Resonated Cat-Back Exhaust - Audi B9 S4 S5 - Brushed Titanium Tips - SSXAU646
Ships free in the US
Make sure this fits your car
Fits: S4 / S5 / RS5 B9
- Shop tested in Dallas
- Free pickup in Dallas
- Installs at our shop
Milltek Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (non-Sport Differential models). Direct factory fitment using OEM hangers, no modification required. 2.50" (63.50mm) mandrel-bent T304L stainless steel construction with quad GT-90 titanium trim tips. Engineered to deliver dyno-proven flow gains while maintaining an OE+ sound character through precision resonance tuning.
Hand-finished T304L stainless steel throughout. CNC-formed resonance chambers eliminate drone while preserving full-throttle articulation. Uses factory mounting points and OEM valve compatibility for seamless integration. Decibel-tested and EC-approved for street and track use.
Fitment
- Audi S4 3.0 Turbo V6 B9 Sedan & Avant (Non-Sport Diff) - 2016+
- Audi S5 3.0 Turbo V6 B9 Sportback (Non-Sport Diff) - 2017+
Dyno-tested and optimized for the B9 platform.
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 > S4 > 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
- Audi > S5 > 3.0 V6 Turbo Sportback B9 (ONLY - Non Sport Diff Models Only) - Left Hand Drive Cars Only > 2017 and Later
Listed for these cars. Check the title and description for exact years, body styles and drivetrain.
| Make | Model | Chassis | Years | Fits |
|---|---|---|---|---|
| Audi | S4 / S5 / RS5 | B9 | 2018+ |
Not sure? Call or text 945-954-1142 with your car or VIN.
- 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.
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