Replacement Pipe for Particulate Filter
(This article is not for use on public roads - only for racing purposes!)
NOTE
For M40i models, only the rear muffler can be mounted alone. To assemble the rear silencer Z4 / G29- (K /) Q90R ... 2x the connection sleeve A70A-MUFFE / 95 and 4x the exhaust clamp SCH68 are required!
The exhaust flap can be opened manually with the remote control AG / FB-EP. This will then remain permanently open. Not allowed on public roads!
The remote control is included in the rear silencers with exhaust flap!
Function flap control:
A special control unit monitors the driving condition of the vehicle. If the speed exceeds the set value (70 km / h), the exhaust flap servomotor receives the signal to open. The exhaust flow is thus redirected and creates a different sound. If the speed of the vehicle falls below the set value (70 km / h), the exhaust flap automatically closes again.
