If you are talking about the stock muffler, I can take it off in less than 15 minutes with just open end wrenches. I use regular wrenches on the torque heads, it works. one small bit at a time, then before you know it, it's off!
If you have the correct combination of swivels, extentions and flex-head ratchets, you can get all of them with the ratchets.
I have pulled one of the headers off and re-installed the stock exhaust by driving up with two wheels on the curb, sliding in underneath and changing it out. (one of the muffler prototypes broke!)