I picked up a used set of Bub Boom Cans for my Road King. There seems to be a chirping sound coming from the left muffler under acceleration. If I tap on the muffler body it doesn't chirp, but sounds different than the right muffler.
I'm thinking the baffle (non-removalbe) may be slightly loose. They are riveted in. Anyone else have an issue like this and solve the problem? Would drilling and adding a couple more rivets help?