greddy 94-98 nissan skyline r33 gt-s fv2 bov w/ adapter kit - bfv2-225 ecr33 11521214

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.