He wasn't talking about his stereo. He has audio clips of his car with headers and UUC TSE3 Exhaust. Personally, I think it sounds good (not perfect). It is a little raspy, but its better than the raspy sound the M3 makes. And it sounds better than the fart cans on the ricers..(it actually sounds like it has some torque) and atleast its a real exhaust system and not just a muffler..
but to each his own.