one more thing, i was looking at your car at DD, i think you should space the mafs farther away from the turbo, you could be getting readings that are very off at certain loads, the meter is so close to the compressor, there is a lot of turbulence there, we moved mine away when i still had my SR and the car ran much much better, not sure if you are having this problem or not but it would still be good to do.
Try making ducting to your intercooler and putting small vents in your hood to raise its efficency, make sure rain cannot fall from the hood onto your filter though, maybe put a heat shield on top of it, too much water in the engine causes the car to run like crap