GReddy blow off valves allow for optimum boost pressures, eliminates compressor surge, and improves boost response between shifts. These blow off valves are easily adjustable to eliminate compressor surge and preventing premature boost leakage, while increasing boost response between shifts. Each valve is made of durable cast and billet aluminum frame and the valve to diaphragm ratio provides performance that cheap piston types cannot offer. The spring stiffness adjustment screw and the three different sizes give the GReddy user the option to match vehicles with mild upgrades to heavily tuned engines.
This valve includes the parts necessary to function as recirculating bypass valve, perfect for your WRX or STi!
Type RZ BOV with adapter & recirc. tube recirculates back into air intake or open with included parts
