September 11, 2007You probably know by now that I'm not very talented with a wrench. I would like to put Shelby mufflers on my Stang (found them on E-bay). I've not looked yet but I was told that I would have to cut off the old mufflers to install the new ones and at that point void my warranty. Somebody set me straight. Is it difficult to change muffs? Do I have to cut them off, and if so, with what? And will it void my warranty? Thanks in advance for your help.