Allows for optimum boost pressures, eliminates compressor surge,
and improves boost response between shifts.
Greddy Blow-Off Valves
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 the Type RS for 100-400hp,
Type R for 260-450hp and the Stiff Spring Type R for over 400hp
Also available in easy to install
kit form for many turbocharged vehicles.