Rear silencer with simple tailpipe 1x Ø?100?mm LH+RH (RACE look), cut obliquely at 30°, with valve control Authorization: ECE-Approval Tube diameter: 85 mm On models which have the standard M-rear valance, it is recommended to use the rear valance attachement BMWG20-HE1 when installing the rear silencer BMWG20-K/Q90R...!
- - - > To the assembly instructions for the valve control! < - - - Using the remote control AG/FB-EP, the exhaust flap can be opened manually. It will be opened permanently afterwards. Not permitted in public road traffic! The remote control is included when purchasing the rear silencers with exhaust flap! Function of the valve control: A special control unit monitors the vehicle’s speed If the speed exceeds a fixed value (70 km/h), the exhaust flap’s servomotor receives a signal to open. The exhaust gas flow is then bypassed and you get a different sound. If the speed of the vehicle drops below the fixed value (70 km/h), the exhaust flap closes again automatically. FAQ for exhaust flap control here!
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