Hey guys, just threw a Flowmaster American Thunder exhaust on my 09 R/T 6 speed. Sounds much better however I just found out the driveshaft bolts are hitting the passenger side muffler on occasion. Standing still it looks like there is plenty of clearance but I guess the exhaust is sliding around while driving. I loosened everything up, made sure the crossover pipe was on properly and it as far up as it can go. I tapped the mufflers on with a mallet and there is no more movement. I just don't have any other adjustments that can be made...has anyone else run into this? I guess I can just take off the X pipe and cut off some material. I just don't like how close the mufflers are to the driveshaft bolts. I have the kit with the slotted pipes and the clamps are very tight. Any info?