If the X2 and the old boxes do boost fooling why would you need the boost fooler at all ? And with the new X2 box why would you want to run the programs with the boost fooler disabled ? Thanks Guys

You don't need an extra BF if you already has one that does it. It is for people to run on it's own or w/ a box that doesn't do BF'ing. As far as disabling it, the only reason I can see is if you are stacking w/ something that already BF's or MAYBE if you are running twin turbo's?