I had midas put it in because i didnt have the tools to get the rusted bolts off ..(even though i tryed) anyway. i didnt have a muffler to put on it so i left the stock ls muffler on with the itr b-pipe. here is the problem. when i drive the car hard for a while then stop. put it in reverse there is a loud CLANKING sound going in reverse. i'm thinking that due to the restrictive muffler its making the b-pipe slam into my shift linkage when i'm in reverse what do you guys think ? anyone have similar problem ?