[drift into a curb]

I don't get what you mean by blown. So something cracked and is rattling around in the exhaust? I would take it off and shake it around to see if you have anything in there that is rattling because I doubt an exhaust would be "shot" unless it had a hole in it. I've had 5 different brand mufflers and never really had a problem with my Apex GT Spec other than ground clearance. Now I have an Altair and the piping rubs the subframe periodically, but nothing that I couldn't fix with some rubber bushings.