Originally posted by HercMan:
The 04 GTPs are running 17 inch wheels that'll sap some power. The GTPs have a 2.93 rear and the Comp Gs have the 3.29 rear. The stock PCMs are torque limiting to save the trannys. The new motors still only have 280 foot pounds of torque anyways. That's your accelleration power not the hp. Plus the 04s are about 100 pounds heavier.
A lot of owners are having their PCMs reprogrammed with good results.
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