anyone whoo cares are may want to know, i just changed the pads on a o6 wrx with 4pot brakes, very easy the only tool i really need to changge the pads(not taking of the wheel) were a pair channel lock pump pleirs, used them to squeeze back the pads a bit enough t get them out and pushed them the rest of the way with my finger real easy change.
i just suggest to do one pad on one side at a time though, becasue if you take out both as you push in one side the other may slide back out, as i said before just do one side of the caliper at a time. later.