my 2002 360 spider has a Tubi NGT exhaust with hyper-flow and then installed fat ass tips. Well last weekend we went for a drive and a buddy called me and told me that the passenger exhaust tip is viberating more than the drivers side. I noticed that the bolt behind the muffler was loose on the passenger side. Tightened it and also added lock washer. So now that is tight. BUT when you shake it, you hear a rattling sound. I am guessing that it is from the bracket. I just called Tubi and they really could not help me. CAN someone please walk me through how to tighten the bolts.