Umm, thats the clutch. The factory clutch does not hold the power on a fast shit very well. Powershifting is almost not an option. You have to slow down the shift just a little bit. Especially, once you do it a few times, it will be too hot to hold well at all. I think a clutch upgrade will do wonders for this car.
We need more boost!
K&N CAI, GMPP exhaust w/XTC 3" d-pipe,
Ported stock exhaust manifold, B&M Shifter
Stage 2 w/2.8, DC Sport sturt brace,
Torque brace, CAB's, poly Trans mounts,
225/40/18 BFG KDW2 tires
GM drilled rotors w/Hawk Pads