Different types of BOV AGP, GReddy Type S, HKS SSQV, Mopar BOV Conversion Plate, Turbo XS, and the turkey call BOV on SRT-4s last one is my favourite :-)

Duck call on a BOV

Any turbo system adds a given amount of restriction to the engine's ability to breathe when off boost. What usually suffers is throttle response. Synchronic BOV helps improve throttle response when used properly.

Dyno and driving comparison between Synapse BOV and HKS on a turbo Scion tC

My old 335i with a few mods.. Procede tune, HKS BOV, BBS RGRs, KW Coils Returned this car and got a white one, check my website...

HKS SSQV BOV with Silver Fin

WRX STI with the "_______" Blow Off Valve

Some guys get drunk and duct tape a turkey call onto a BOV . This video is hilarious . Idk if i could ever race a car that sounded like this.

blow off valve been changed

This is me making a retarded walk to my car and capturing the noise of the blow off valve on my digital camera. The Car was stolen about a month later on December 14th in Kirkland, WA. Idiots couldn't afford their own, so they stole mine. It's an HKS Suer Sequential BOV on a Notch Top SR20DET