Active Autowerke High Performance 42mm Blow Off Valve wo Flange | BOV | E82 135 N54 1M E9X 335
The Active Autowerke Blow Off Valve is a pull-type blow off valve suited for high horsepower applications. It is used extensively throughout the Active Autowerke product line both for turbocharging and supercharging. Constructed from an all aluminum cast body, with a large single stage, steel pull-type valve to handle the extreme pressure and airflow discharge volume that is associated with high boost / horsepower applications.
The BOV is engineered for up to 43psi of boost and can function precisely on BMWs producing more than the 500 horsepower range.