Alright, I've been having some pretty bad exhaust rattle for a while now, it's whenever I'm decelerating, and at high rpm, for instance, when I down shift to 3rd comin' up to a light. It's pretty obvious that it's the mufflers bangin' something, cause it sounds like some lil troll is under my car playin' bongo on my mufflers. Anyways, my friend goes to car tech school and his teacher told him somethin' about putting weights on the exhaust to dampen the movement. Anyone ever heard of this? or have any other suggestions? Thanks much.