50MM ALUMINUM TURBO/INTERCOOLER 35 PSI SILM BOOST V-BAND BLOW OFF VALVE BLUE Complete Systems Skip to the end of the images gallery Complete Systems Skip to the end of the images gallery 5L3Z18125HA

5L3Z18125HA

Interchange Part Number: K3198 K3199

TWIN TURBO L

UPC: 712367192129

Cross Part Number: 9008005060

50MM ALUMINUM TURBO/INTERCOOLER 35 PSI SILM BOOST V-BAND BLOW OFF VALVE BLUE Complete Systems Skip to the end of the images gallery Complete Systems Skip to the end of the images gallery 5L3Z18125HAThe 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