Call Bahn Brenner Motorsports Frequently Asked Questions

BBM FAQ

What is the difference between a blow off valve and a diverter valve or bypass valve?

A BOV blows the extra air that is generated from the turbo or charger when going off throttle into the atmosphere causing a "pshhhh" sound. A diverter valve or bypass valve directs this air back into the air intake system or the intake side of the compressor. For additional information or questions on this topic please search or ask the www.vwvortex.com forums. 

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