I ran these pipes on my Heritage for a couple of years. Great performance pipe! I looked into baffle changes to tone down the bark a little but was told there was no replaceable baffle alternatives for this pipe. The shop I deal with could not find anything. There was no mention of alternate baffles on the V&H site.
I ended up replacing the pipes with the V&H Big Shots - Long which did come with options for baffles.
Perhaps there is a 3rd party that offers a Competition baffle, I couldn't find anything.