Yes, the bolts are removable. The bolt heads have been slid into a slot in the bracket and they will come out after you have disconnected them from your muffler when each is individually slid towards the centre, where a cut exists. Secondly, once removed you will have to put them back for the new can. Pretty obvious I suppose. Thereafter loosen the two jubilee clips holding the muffler connected to the pipe coming from the engine where the muffler has been slid on it. Thirdly, you will have to move the old muffler a little left and right or even up n down as you pull it back. Don't worry, nothing will bend. Catch phrase is, move it side to side a little at first and increase distance only when needed. Lastly, apply a little grease to the inside of the new muffler at the end which will go over the pipe coming from the engine. It will help slide it on with ease. The grease will burn off without a trace, so no worries. yes, another very important point is that, if you get any grease or oil on the exterior of your new muffler, wash it off with normal household detergent BEFORE STARTING the bike otherwise, the stain will become permanent and you can do nothing about it. So get to it and get your new muffler on.
By the way, have you explored any other slip on muffler? I would recommend Firebrand Loose Cannon. It's amazing. The final choice is of course yours. >