There's a couple of things I'm a bit concerned about,one being whether to go for 2" or 1" width and is 15 foot long enough to do the job
IMHO wrapping your exhausts is making your bike look like Nora Batty's legs, and that's no a nice sight.
Looks as though this is just an article enthusing about the benefits of exhaust wrap---if you want everyone to think your Nora Batty wrap your exhaust pipes, and make your bike look stupid into the bargain.