Bully Dog chip for my mustang?

I have a 2008 Mustang gt. Would a Bully Dog programer be worth getting for it?

Well, if you want to see what your vehicle is really capable of, then probably you should get one. The GT tuner by Bully Dog is made for gasoline-powered engines, so if your owned a 2008 gas powered Ford Mustang GT V8 4.6L, then the triple dog GT tuner should work for you without any problems.