Active Autowerke l Signature Exhaust - BMW 135 E87
After months of testing this system with 3” piping the active autowerke engineering team decided that 3.5” piping is the most adequate size for a free flowing design. The increase in piping size decreases back pressure allowing the 135’s twin turbo to spool even faster resulting in increased horsepower and torque. The incorporation of the noise cancellation chamber on the side of the exhaust reduces/eliminates drone.
This is a must for the 135 enthusiast .
Key Features:
- Full 304 stainless steel with hi-polish finish
- 3.50" size tubing with mandrel bends creates optimum flow
- NCC, noise cancellation chamber reduces noise and droan
- Dual 80mm Active Autowerke Signature tips mounted staggered
- Light weight
- Designed to use existing factory mounts and hardware
- Full adjustable mounting positions
Easy and simple installation, just unpack and install
Notes: