GReddy BOV

The GReddy FV Blow Off Valve is a new generation of blow off valve/ The unique "Floating Valve" design incorporates a revised adjustable dual spring system, while maintaining the advantages of the previous models' push valve structure and silicone diaphragm control. The improved design makes spring preload setting less dependent on the idle, while providing increased response, valve travel, flow and resistance to premature valve lift under all conditions.

The GReddy FV adopts the same mounting and outlet size and position as previous GReddy RS and RZ models, so retro-fitting to existing applications is possible.

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 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, we recommend  Stiff Spring Type R for over 400hp applications.

The GReddy FV2 FD3S Specific Blow Off Valve Kit. Vents to atmosphere 

Universal GReddy Blow off Valve Flange, Gasket, Nuts & Bolts

Aluminum (weld-on)

Piping OD 52m & ID 42mm

Compatible with all GReddy Blow-off Valves: Type FV, Type-R, Type-RZ, Type-RS, & Type-S