Blow-Off Valve Flange by GReddy. Piping O.D.: 52mm and I.D.: 42mm 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. | As a division of the Trust company LTD, GReddy Performance Products is a leading manufacturer of performance exhaust and cooling systems, turbo kits, electronics, and accessory lines. Using the concept of the total tune-up, the company strives to develop and enhance its products to significantly increase the pleasure of the driving experience. GReddy's facility offers an incredible selection of superior components reflecting the company's spirit of continuous evolution.

Features:

• Designed to deliver trouble-free, consistent performance
• Right for your vehicle and racing lifestyle
• Made from high-quality materials for ultimate durability
• Manufactured to meet or exceed strict quality requirements