
Milltek Non-Resonated Cat-Back Exhaust - Audi B9 RS4 Avant - Brushed Titanium Tips - SSXAU803
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 Non-Resonated Cat-Back Exhaust for the Audi B9 RS4 Avant
Engineered as a direct replacement for the factory cat-back, this non-resonated system removes the centre resonator to unlock a louder, more aggressive full-throttle character with freer flow.
Key Features
- Premium Materials: T304Lstainless steel for durability and lasting corrosion resistance.
- Enhanced Performance: mandrel-bent pipework improves exhaust flow for sharper throttle response.
- Sound Profile: Non-Resonated (Louder) for the intended tone.
- Direct Fitment: engineered as a bolt-on replacement for the factory system.
- Tip Finish: Brushed Titanium Tips.
Technical Specifications
- Material: T304L Stainless Steel
- System Type: Non-Resonated Cat-Back Exhaust
- Tip Finish: Brushed Titanium Tips
- Resonated: No
Compatibility
- 2018 to 2023 RS5 B9 2.9 V6 Turbo Sportback
- 2018 and later RS4 B9 2.9 V6 Turbo Avant
Why Choose Milltek?
Every system is precision-built to deliver the sound, flow, and quality that define the Milltek difference.
Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.
Fitment
- Audi > RS4 > B9 2.9 V6 Turbo Avant > 2018 and Later
- Audi > RS5 > B9 2.9 V6 Turbo Sportback > 2018 to 2023
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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