Blow Off Valve, Universal Aluminum Billet Turbo Blow Off Valve BOV, Professional Dump Valve BOV with 2.5in Flange Pipe & 8 Discharge Ports for Racing Car, Intake Tract Pressure Relief(Blue)

【MAIN FUNCTION】When the throttle is closed rapidly, the airflow is quickly reduced, causing flow instability and pressure fluctuations. Surge can eventually lead to thrust bearing failure due to the high loads associated with it. The BOV is a pressure relief device on the intake tract to prevent the turbo's compressor from going into surge. 【DUAL SPRING SYSTEM】The turbo BOV has dual spring system to promote response and hold up to 30 PSI boost pressure. The valve can use a combination of manifold pressure signal and spring force to detect when the throttle is closed. 【HIGH PERFORMANCE】This dump valve BOV can use a combination of manifold pressure signal and spring force to detect when the throttle is closed. It equipped with 8 discharge ports that draw in surrounding air and release an aggressive JDM racing discharge sound. 【PACKAGE INCLUDE】This blowoff valve kit comes with 2 Dump Pipe Flanges: for TYPE-S & for TYPE-RS (The size of flange pipe is about 2.5in/6.4cm). And it also comes with 1 turbine valve, 1 hose, 1 flange pipe interface, 1 gasket, 4 clamps, 2 nuts, 2 screws and 2 brackets. 【100% QUALITY ASSURANCE】We are very confident in the quality of this blow off valve, and provide warranty or refund for it. Please feel free to reach us if you have any questions about your purchase. We will solve your problem within 24 hours.