Just a quick question....has anybody out there thrown on 4 piston calipers for the rear brakes? I"m wondering what the difference would be. I realize that the large majority of the braking is through the front brakes, but to be real honest, I'm not impressed with the braking ability of the STi at all. The brakes, on both that I've driven, including my own, feel squishy. I've never had a foreign car before this one, but my '03 Mustang GT seemed to break a heck of a lot better. Just a question....