As stated above, most people get a PRE TUNED PCM and expect it to be completely compatible with their car. All cars are different, therefore the tunes will have to be different. It isnt accurate to shun every other PCM because some moron messed up his car.Originally Posted by bluegtp91
That being said, I had a ZZP 1.0 in my 97 GT and it was great. I kept beating on my friends 3.4 pulley ssei with it. DONT forget to include the skip shift feature, that is one of the best parts.
Go with ZZP, just make sure you tell them everything uve done to your car so they can account for it in the tune.
YouTube - Bonneville SSEI vs Grand Prix GT
