Quote Originally Posted by DanPrixGTP View Post
Pliers. Lots of twisting and turning/yanking.

You can even buy Spark Plug Boot Remover tools as well. Most of your auto parts store should carry them.
Those usually only end up leaving you with busted knuckles and a still stuck on boot. They're great if the boots are only sort of on there, but as soon as they are stuck, it's a no go.