On turbocharged vehicles, blow off valves release excessive boost pressure trapped inside the intake pipe when the throttle is released. This release of pressure is important because as the vehicle accelerates, the turbo builds a high pressure air stream through the throttle body and into the motor. When the driver lets off of the accelerator and closes the throttle plate, the trapped air instantaneously has nowhere to go. This trapped air begins to travel back towards the turbine blade causing excessive strain on the blades. Prolonged exposure to these conditions can cause premature turbine wear and eventually cause turbine failure. The Apexi Spec 2 blow off valve is designed to effectively release this pressure into the atmosphere. The unique design allows quick response without causing any excessive turbo lag between gears.
Warning: We will NOT refund for the installed unit. It strongly requires professional installation.