Mine's been on the car since new with no problems. I miss the prochamber sound on my last GT though. I've noticed X-pipes kinda have a different note to them. And honestly I don't like the O/R xpipe and flowmaster 2 chamber sound. Just sounds crappy most of the time. I'm gonna be swapping in some race bullet's soon.anyone tried the bbk o/r x-pipe, only got a little to spend on one.