Went to the dyno with a street tune if you will on the car and dropped down 140.00 for 4 pulls and the results are in. After turning the Map Clamp "down" to 4.6 or so volts and the boost to 23 psi and 15 at redline (same as boost in Jan 04) I made:
279 horses and 368 ft lbs of torque (300 lbs out to 5k) with a AFR of 12.5/6 spraying WaterAlky!
The AFR is very flat and the increases in hp and trq are not spikes but with major mid range gains. There is a lot more power under the curve
I will get up a copy of the chart soon.
Boost Cooler from Snow Performance!