Milltek Resonated Cat-Back Exhaust - Audi B9 S4 S5 - Carbon Fibre Tips - SSXAU721
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 3.0 V6 Turbo (2016+). Direct factory fitment replacement with 2.50" (63.50mm) mandrel-bent T304L stainless steel construction. Engineered for Sport Differential models without brace bars.
Hand-finished quad JET-100 carbon fiber trim outlets deliver a refined OE+ tone character without excessive drone. The resonated design fine-tunes the OEM resonance point for a sportier, more pronounced soundtrack while maintaining street-legal comfort. CNC-formed silencers and precision welds ensure durability and corrosion resistance.
Fitment
- Audi B9 S4 Saloon/Avant (2016+) - Sport Differential models only, without brace bars
- Audi B9 S5 Sportback (2017+) - Sport Differential models only, without brace bars
- Engine: 3.0L V6 Turbo (EA839)
- Uses OEM hangers and mounting points - no modification required
Specifications
- Pipe diameter: 2.50" (63.50mm) mandrel-bent
- Material: T304L stainless steel, hand-finished
- Resonated: Yes - engineered tone with drone elimination
- Outlets: Quad JET-100 carbon fiber trim
- System type: Cat-back (OEM catalytic converters retained)
EC type-approved for global compliance.
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 - 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
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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