UNIVERSAL 50MM V-BAND RED TURBO BLOW OFF VALVE/BOV 35 PSI BOOST+SPRING+FLANGE Liftgates 2001 - 2005 compatible for

2001 - 2005 compatible for BMW 325Ci (E46)

Includes Square

Superseded Part Number: 80578

Made from forged and heat treated chrome vanadium steel with a corrosion-resistant black phosphate finish

Wired for Use With Horn Buttons

UNIVERSAL 50MM V-BAND RED TURBO BLOW OFF VALVE/BOV 35 PSI BOOST+SPRING+FLANGE Liftgates 2001 - 2005 compatible forThe 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