Motorcycle Questions? Ask a Mechanic.
It is pretty simple to do if you have the ability to jack up and support the trike. Two bolts and one clamp is all that holds the muffler in place. I use a penetrating lubricant at the male/female pipe connection under the clamp to ease removal and installation. It can be tough to get moving.
The Freewheeler uses shorter slip ons than a tourning bike or the tri-glide so be careful in your selection of replacements if you are varying from stock.
I hope this helps. Thanks, P.J.