GReddy's suite of Blow-Off Valves is precision-engineered to thwart compressor surge and avert boost decay, enhancing boost consistency through gear transitions. Each unit's robust cast and machined aluminum construction, coupled with a favorable valve-to-diaphragm ratio, eclipses the performance of lesser piston-based alternatives. With an adjustable spring stiffness screw and a selection of sizes, GReddy caters to a spectrum of tuning levels, from lightly modified street cars to aggressively tuned track beasts.

When selecting a blow-off valve, consider the valve's placement, the size and pressure of the turbocharger, and the engine's power output. Generally, GReddy suggests the Type RZ for engines ranging from 100-400hp, Type R for those between 260-460hp, and the Stiff Spring Type R for powerplants pushing over 400hp.

Included in the kit:

• GReddy Type-R STD Blow-Off Valve (ideal for the 260-460hp range)
• Universal Fitment
• 47mm Valve Size with Standard Spring
• Assembly Components: BOV, Gasket, Nuts & Bolts
• Vacuum Nipple and Hose