If you are looking for a Kompact EM unit for other N55 engined vehicle

Thickness: 12mm

\n Boost-balance technology

For maximum adjustment range check out the lower control arm aswell

BOV Controller Kit - Type 5 Supersonic - Black Mazda If you are looking forThe Turbosmart BOV controller is an electronic device which controls the pressure signal to the BOV. It works by detecting a negative voltage change in throttle position. It then energises a solenoid to vent all of the air out of the BOV cap, causing a pressure differential between the piston of the BOV and the cap which will vent pressure from the intake system. Diesel engines can experience compressor surge when coming off the throttle. The