Seller notes

FV Blow Off Valve & Direct Fit Adapter For Subaru Impreza WRX STI Fits The Following Vehicles:Unviersal - This blow off valve comes with a universal installation kit designed to work with virtually any car. The Blow off valve (BOV) is a pressure relief device on the intake tract to prevent the turbo compressor from going into surge. When the throttle is closed rapidly, the airflow is quickly reduced, causing flow instability and pressure fluctuations. Surge can eventually lead to thrust bearing ...

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