As are with most true dual exhaust, if the baffles are removable:
-Remove the outer end caps. Usually one screw at the top or bottom that holds the cap to the actual pipe.
-There is usually another screw on the bottom of the pipe that holds the baffle in place. Remove it.
-The baffle should with some persuading, come out as one unit. You may need to clamp some needle nose vise grips and tap on the pliers with a hammer to get them out, but one you get them started moving they should come on out easily. Generally there is only one point of contact from the baffle to the pipe (at the point where the screw is).
NOTE: I too, at times wish I had a quieter ride. I have Rineharts on my ultra with the stock baffles. They sell a "quiet" baffle, but i have read somewhere that this quieter baffle will reduce the exhaust pressure which will reduce the torque/HP slightly. Theory is, reduce the niose, you have to have a trade off for power. I read that a guy (sorry I cannot locate the link on this) had his bike dyno-ed with the stock baffles then with the quite baffles and the power loss was 5-7% and the bike was 5-10% quieter as measured with a decibel meter. I think this sounds accurate. It is not worth the loss of power to get 5% quieter. Not for me.
RineHarts are fairy quiet, not as quiet as HD stock, but more so than some. On a 500 mile day ride, the drone of loud pipes really hampers my pleasurable riding experience...just my opinion...others like the screaming, roaring pipes and for them that is good also. I call these the "look at me riders" as most are going from tavern to tavern and the noise does not concern them...mainly because "momma" is home and not complaining about the noise either. LOL! Not to open a can of worms or steal this thread...just my humble opinion and viewpoint. The older I get the more I am concerned with comfort and safety rather than bling and the "wow" factor. Try ear plugs, they work to deaden the sound and you can still hear the engine and external noises. They also make the long riding day/week more enjoyable, at least for me they do...plus you can still hear the intercom and the radio via the helmet headset.