Silvery FOR All VAG 1.8T/2.7 engines Blow Off Valve BOV Kit Adaptor US For Hyundai Turbo Reference OE Number：12528777

Reference OE Number：12528777

6420900080

5303 970 9

Interchange Part Number: 172764

Replace Fel-Pro Part : HS26436PT

Silvery FOR All VAG 1.8T/2.7 engines Blow Off Valve BOV Kit Adaptor US For Hyundai Turbo Reference OE Number：12528777The Blow Off valve (BOV) is a pressure relief device on the intake tract to prevent the turbo's 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 failure due to the high loads associated with it. Blow Off valves use a combination of manifold pressure signal and spring force to detect when the throttle is