This after market blow off valve is important for any
turbo systems for improving performance, response, and also to increase the life
of your turbo. Relieve the compressed air that is forced back into your turbo,
which will cause compressor surge or backspin. Repeated compressor surge will
damage the turbo and cause turbo failure. This BOV is made from high quality
polished aluminium for durability and performance. It's valve design allows more
compressed air to release making a deep swoosh sound
Spec:The body is constructed of very high quality Machined
Rated up to 40psi of boost.
Gains back 6-10 BHP by stopping the turbo ?stall? effect of your existing Bosch
Keeping turbo spooling between gear changes reduces Turbo
Increases your turbo's life span
Massive 1" brass piston, large 2" diameter housing.
Valve vents to atmosphere/ re-circulating pipe work must be removed, Bung not
Impreza WRX STI 2002-2006