Take off the chrome end-caps - should be held on with an allen head bolt. You may have trouble getting the caps off. I used a stout socket on a wratchet and put it inside the pipes and pulled it back hitting it against the lip of the cap on the inside. If you move around the perimeter tapping it this way they will come out. Keeps from scratching up the chrome on the exterior. Then you just take out the similar bolt that is further up the pipe and use something to slide the baffle out. I have dragsters and I couldn't imagine taking the baffle out. Things will put you deaf with them in. I'm actually looking to quite mine down some.
2013 HD Super Glide Custom