Unfortunately, there is no such thing as a "superchip." In fact, our cars dont use "chips" at all. The way to upgrade the ECU is to have it tuned. No crazy 60 horsepower gains by simply dropping a new chip in, as some places seem to claim.
For you, an FSwerks exhaust is probably a better route. I'm not even sure the 2012's can accept ECU tunes yet, although I"m not sure on that. Someone should chime in here and let me know if I'm wrong though.
ROTM June '13, PNW Crew #42, SR #245, Rally Rev #02