Dude most bov like go fast bits and the hks, greedy type rz, turbo smart sound just like air witch is nice, but the greedy type s is like a really high pitch squil of air.
Thanx man and I agree it did give me a eargasim.http://www.evoxforums.com/forums/showthread.php?t=51985
Read that. The sound gives you an eargasm every time. Best part is that it works on the evo x without bucking and compressor surge BS. I'd stay away from Greddy. Their diaphragms are weak to begin with but buying a part that has been on someone else's car for 10 years probably isn't the best decision in the world.