Overview
The Milltek Non-Resonated Cat-Back Exhaust System is engineered for the Audi B9 S4 and S5 (non-sport differential models). This 2.50" mandrel-bent system replaces the factory exhaust, delivering enhanced flow, measurable power gains, and a signature aggressive tone without resonance chambers.
Constructed from T304L stainless steel and hand-finished with quad GT-90 titanium trims. Direct factory fitment using OEM hangers-no modification required. The non-resonated design eliminates mid-range drone while preserving full-throttle character and presence.
Details
Fitment Notes
- Audi S4 3.0 TFSI V6 B9 Saloon/Sedan (non-sport diff) 2016+
- Audi S4 B9 Avant (non-sport diff) 2016+
- Audi S5 3.0 TFSI V6 B9 Sportback (non-sport diff) 2017+
Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.
Fitment
| Years | Make | Model | Engine Family | Engine | Trim |
|---|---|---|---|---|---|
| 2018-2019 | Audi | S4 | EA839 | 3.0T | All |
| 2018-2019 | Audi | S5 | EA839 | 3.0T | All |
