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 models give the Greddy user the option to match vehicles with mild upgrades to heavily tuned engines.
Greddy - Turbo, Exhaust, Gauges & More. A company founded and managed by racers and enthusiasts, GReddy has one prime goal, to develop products that increase performance. To this end, the GReddy spirit of constant evolution shows in every product we offer. The reputation of the GReddy performance line for US spec, European Spec and JDM vehicles is unsurpassed and backed by a sales and service organization second to none. In our Irvine facility we maintain and excellent inventory of product and are able to maintain a 90% fill rate on orders, a number hard to match in today's changing marketplace. Our application listings are extensive, covering most of the popular vehicles with a broad variety of products, We employ a constant customer awareness program with a feed back channel, which is used to further improve our product lines.