Universal Black Aluminum Body Type-H-REL Blow Off Valve 30 PSI SH-3-4-45-BK Remark: Silicone hose water permeation

Remark: Silicone hose water permeation rate is 10 to 15 times greater than standard EPDM rubber hose

Recommend to use on HPS hoses with inside diameter 1/4" (6

It maintains oil supplies at a consistent

HPS 4-1/8" (105mm)

This item is perfect for replacing old

Universal Black Aluminum Body Type-H-REL Blow Off Valve 30 PSI SH-3-4-45-BK Remark: Silicone hose water permeationThe 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 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