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Active Autowerke BMW X3M X4M Valved Rear Axle-Back Exhaust
This Active Autowerke valved rear axle-back exhaust is engineered specifically for the BMW X3M and X4M, giving the S58-powered SUV a more aggressive exhaust note while retaining factory-style valve control. The valved design lets the exhaust switch between a refined tone during normal driving and a fuller, more aggressive sound under load, so the vehicle stays comfortable on the road without losing character when you want it.
Because it is a direct-fit axle-back system for the X3M and X4M, it replaces the rear section of the factory exhaust and is available with a choice of exhaust tip finishes: stainless brushed, matte black, carbon fiber, or carbon over black chrome. The tip selection lets you match the rear diffuser and exterior trim of your build.
Key Features
| Brand | Active Autowerke |
| Product Type | Valved Rear Axle-Back Exhaust |
| Vehicle Fitment | BMW X3M, BMW X4M |
| Engine | BMW S58 |
| Exhaust System Section | Rear Axle-Back |
| Valved | Yes |
| Exhaust Tips Type | Stainless Brushed Tips, Matte Black Tips, Carbon Fiber Tips, Carbon over Black Chrome Tips |
| Material | Stainless Steel |
| Installation | Direct Fit |
Highlights
- Valved rear axle-back design for controllable exhaust tone
- Direct fit for BMW X3M and X4M
- Available with stainless brushed, matte black, carbon fiber, or carbon over black chrome tips
Compatibility
- BMW X3M (S58 engine)
- BMW X4M (S58 engine)
Frequently asked questions
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