Greddy 47mm Type R Blow Off Valve Universal
Model: 11501660 Greddy R BOV Kit - Standard Spring
11501661 - Stiff Spring
Greddy Type R Blow Off Valve 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. There are many factors in matching a blow-off valve to an application, valve location, turbocharger size and pressure, but as a general rule of thumb, Greddy recommends Standard Spring Type R for 260-450hp and the Stiff Spring Type R for over 400hp applications.
Greddy Type R (Racing)
Machined/Cast, 47mm valve, adjustable, 50mm outlet
Includes BOV gasket, nuts & bolts