I started by sticking a wooden dowel in the baffle pipe and wiggling it around til the 2 welds broke. With the pipe out of the way, I cut the baffle plate out with a bi-metal hole saw, kinda ragged because there was no material for pilot bit, saw jumped around. Rim of first baffle still in there. Started on second baffle same way, took a lot longer to wiggle little pipe loose, no room to wiggle. After those little pipes were out, stuck a 1/2" piece of galvanized pipe in the ragged hole and hit with hammer to enlarge it, the whole baffle plate came out because it is only tacked to the perforated lining, not the chrome pipe.
Sprayed some Hi-heat flat black in there and that was it. Very happy with sound.
