So a few months back, I installed the Hahn 3" catback on my 09t/c. I love this exhaust, but just recently (at least 2 months after the installation of the catback) I have had a rear end clunk. I took my car in today to get the TSB on the charge pipe done, an oil change, and the brakes, and my service center says the rear end clunk is my exhaust hittng the frame. It sounds like a good possibility, but I'm just curious if anyone else has had this problem and if there may be a simple fix.

 

Yeah the part where it bends over the axel tends to be the trouble spots, just needs to be adjusted. What part of FL you in?

 

I'm located in Ocala. About 30 mins south of G-ville if ya don't know the area around here.

 

I had that issue but it was because mine is lowered on the sportlines. I took it into the exhaust shop, they modified it by extending the pipe a bit to get it a little higher over the rear axle hump, then extended the other side to get the tip back into the right place on the bumper.