I'm not wealthy,...so on every harley I've had,...I 've drilled out the baffles.
My latest is a 05 road king. i cut the three welds holding the baffle assy in with a dremmel tool. Took a broom handle,..and beat out the baffle from the engine side(with pipes removed of course). Then we've always drilled a 1/4" hole underneath the rear of the pipes. Weld a 1/4" washer on the bolt so that you get some backpressure on the valves. Sounds great,..and Loud. Ya can always put baffles back in if ya gotta get it inspected.
Crawdaddy