GReddy Blow Off Valve TYPE R Reinforced spring Greddy

Blow Off Valve TYPE R Reinforced spring Greddy GReddy 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 gives the GReddy user the option to match vehicles with mild upgrades to heavily tuned engines. Item: Type R Blow-off Valve Part #: 11501661 Type: Type R Size: 47mm Notes: Machined/Cast 47mm valve adjustable 50mm outlet over 375hp range BOV gasket, nuts & bolts