Did this work a couple of weeks back. It happened so quickly I didn't document it with pics except for the final product. These are aftermarket baffles and cost only $39 for the pair.
Baffles not only tune the sound a bit from that with the open drag pipes, they also improve the mid-range power a bit. I noticed after I cut the pipes, the "tuning" was off in low-mid throttle. These baffles put everything back spot on.
Story behind the baffles.
Back when the pipes were stock length.
I was concerned about the loudness of the pipes. I had intended to add baffles to the pipes. But when I cut them off:
I found that these pipes did indeed have the exhaust manufacturer's own brand of baffles and I had cut right through them. They weren't very effective and cost $49 for each baffle.
So I found these on Amazon:
8" Exhaust Baffles for 2-1/4" Drag Pipes Harley Exhaust
I am happy with the result.