it can be done, type supercharger 4k in youtube, i think you use an sc12, theres a fair bit of information on how to do it, not to expensive, but depends what you want to spend, how much you do yourself and how long you want your lil 4k to last, i doubt you can do it to one, without a reground cam, well you just wouldnt and yea, look into it mate.
Travis