Hook that up to a set of PA speakers and you will have all the respect you deserve! I hope the sound is not all you care about, the sound is a by-product of the turbo and not the selling point. Most japanese tuners even recirculate the BOV's back into the turbo inlet.
true that, you will run rich for a sec when the BOV opens, causing cool looking backfires, but deffinatly not the best for the valves and exhaust parts.