Vortech Maxflow Race Billet High-Tension Spring  Aluminum Blow-Off Valve - Clear Anodized

Our Maxflow Racing Blowoff Valve (BOV) flows 320 CFM @ 8PSIG and features a compact design that is ideal for applications with tight engine compartments. These valves are equally capable as the Race Bypass Valve, but the 360° discharge from the Race BOV gives them a distinctive and louder "blowoff" sound. These functional and stylish valves are available with Black or Clear Anodized finish, and will retrofit to standard HKS/Greddy style mounting pads while outperforming anything its size. Race Blowoff Valve are preset to open at three to four inches of vacuum. Installation gasket is included. Weld-on flange required for some applications, sold separately.