Adjustable relief pressure and flow control makes fine-tuning on the fly simple and quick with the PERRIN Blow Off Valve. The PERRIN blow off valve cap, piston & flange are all CNC machined from 6061 Billet Aluminum. The body is CNC machined from a single block of aluminum. No additional bolt on pieces means we eliminate potential leaks. The PERRIN BOV features an adjustable cap which allows you to tailor when your BOV releases. Set it up loose for a smoother release of boost at light loads and RPM. Or crank down the cap to release boost only at higher boost loads and RPMs. This feature is independent of relief volume. Our unique design allows you to adjust the volume of air released when blowing off. This adjustment is independent of the resistance to blowing off. Venting too little can damage the turbo, venting too much air can will make the throttle less responsive. Specification: Body Material 6061 Aluminum Body Finish Anodized Red Piston Material 6061 Aluminum Piston Finish Anodize Clear Spring Stainless Steel Flange 6061 Aluminum Cap Material 6061 Aluminum Cap Finish Anodize Black
