I just put on the TXS turbo back exhaust this weekend. Installation went smoothly, but yesterday I noticed a rattle coming from under the car. I drove around last night trying to determine the cause, it seems to make noise when I am at low rpms in higher gears and also when I start or stop suddenly. I checked all the bolts and the bracket, nothing is loose. There just seems to be a lot of play in the exhaust. Anyone else experience this? Any ideas?