What makes that Chatter noise when you let off the gas on some turbo cars is it the waste gate or the bloww off and what is the best combo to get that noise from a turbo integra with an external waste gate ???? Help

 

that would be the blow off valve buddy...
http://www.alltrac.net/tuning/blowoffvalve.html

they have wavs of the different sounds and styles

 

is it the sound the supra makes rolling up to the final race in FF? if it is its called compressor surge and its not a good thing. A bov that is to tight, or no bov can cause that.

 

I thought that was his two-stage rev limiter. They are really wild sounding.

Randy