Has anyone blown a RB muffler? Can they be repacked?
 

I bought a used dual tip RB catback from a forum member in 2007 off a car which supposedly had 5k miles. It was unusually lound and raspy for a RB, but I got used to it and no one seemed to complain too much. I should have waited the 3 weeks for a new one...my bad. Last Fall, as I was driving on the highway, the car got noticeably louder and it's now reached an all time high level of nuissance. Has anyone blown one of these mufflers and/or has anyone attempted to repack them? Racing Beat didn't really have any suggestions worthy of consideration.