I used fishing line. All you have to do is place it between the emblem and pant and use it to cut the glue like a cheese cutter. then you can pick the residue off and use Goo Gone to wipe away the leftover...really easy. I've done it on my last 3 cars and its never taken over 15 minutes for the whole thing...
Love it. not too loud, not too quiet. It really howls when you get on it but cruising down the highway isn't annoying. Had one on my 2011 as well and I made the choice to get it again rather than just a muffler...even tho it would have been a lot cheaper. Plus its warrantied with your truck if you have the dealer install it...(only cost me $60 for install on my 2011)