Vortech always asks for your computer to be shipped to them. What they do is use a generic chip (mine is superchip) and put a sticker over it. If you break the sticker, you void your warrenty. That's it. If your computer comes back with "special" tuning I will commend you, otherwise I'd ask for your premium payment back.
Btw, I think you are the first mystique that I know of with forced induction.