Product details
OVERVIEW
The Active Autowerke valved rear axle-back exhaust for the G-chassis M340i and M440i reuses the factory valve actuator for OEM-style valve control and exits through quad tips. It is built from 304 stainless steel in the USA and deepens the tone over stock while keeping full drivability.
Tips are offered in stainless brushed, matte black, carbon fiber, and carbon over black.
SPECS
- Valved rear axle-back; reuses the OEM valve actuator
- 304 stainless steel, made in the USA
- Each unit test-fit on Active Autowerke's M340i/M440i exhaust fixture
- Quad exhaust tips (finish varies by option)
- Not a catalytic component
PARTS INCLUDED
- Rear axle-back exhaust section with quad tips
- Connecting hardware for the mid-pipe
- All necessary installation hardware
TECH RESOURCES
Additional Parts Required
- None required. Installed alone this exhaust requires cutting the factory mid-pipes.
- Optional: pair with the Active Autowerke Mid-Pipe w/ Active Brace (M340i / M440i) to avoid cutting.
Installation
Notes
- Tip finish is selected at the variant level.
- On 2025+ (B58N) cars the volume increase is smaller due to the GPF in the downpipe.
PART NUMBER
- 11-089 — stainless brushed tips
- 11-089B — matte black tips
- 11-089C — carbon fiber tips
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | M340i | G20 | B58 3.0L Turbo I6 | 2020+ |
| BMW | M440i | G22 / G23 / G26 | B58 3.0L Turbo I6 | 2021+ |