The main complaint is that people say the bends are too restrictive and the piping too small... Really I don't know how drastic this is with lost performance vs another exhaust, I doubt it's truly significant... I can tell ya this though - It sounds absolutely bitchin. Not too loud, but a nice deep humming... Never heard a labree in person, but I'd wager from people's opinions that the Borla sounds better. And yes, sound can be one of the reasons someone goes with an exhaust!
