Hey guys/gals i just joined this forum the other day. I just bought my 2011 gt prem. about a month ago with 1200 miles on it. when i got it there was the Heartthrob cat-axel exhaust on it. (its for sale btw) and put on a magnaflow comp cat back with after cat x-pipe. ever since I put this system on the tips keep moving on me. they keep turning in towards the bumper. i fixed the passanger side by bending the bracket new to the tip of the axel back and it sits perfectly. but the driverside keeps moving no matter what i do. I thought it was just magnaflow but my buddy bought his a few weeks after me and put a pype bomb axel back on and it does the samething. Anyone have the same problem? if so how can i fix it?