Description:

The 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 closed. When the throttle is closed rapidly, the BOV vents boost in the intake tract to atmosphere to relieve the pressure, helping to eliminate surge.

ACKNOWLEDGEMENT AND AFFIRMATION OF EMISSION AND CLOSED COURSE COMPETITION USE ONLY

WARNING: CARB (The California Air Resources Board) and the EPA (Environmental Protection Agency) do not permit the installation or use of aftermarket emission related performance parts that remove or alter any OEM emission control devices that are not certified by CARB with an E.O. (Executive Order) number. A product that is not in compliance or does not meet the standards of CVC (California Vehicle Code) sections 27156 and 38391 are restricted for sale in the state of California and cooperating states. The only exceptions to these standards are vehicles that are specifically racing or competition vehicles that are ONLY driven on closed courses and are not driven on public roadways; including highways, local roads and public land. Prior to purchasing, please review and confirm your local laws and regulations regarding compliance for items restricted by the EPA & CARB. THIS PRODUCT IS FOR CLOSED COURSE RACE OR COMPETITION USE ONLY. IT IS NOT INTENDED FOR OR LEGAL FOR STREET USE. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. § 7522(A)(3))