I wouldnt do it, get an aftermarket pcm for your specific car if you dont want your stock one, the PCM would need to be reprogrammed regardless for your car and that would be about 100 bucks.
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Modified 2001 Grand Prix GT 3800 Red/Orange Kills: Acura RSX type-S, Early 90's Rx-7, Mustang 5.0GT, Modded Cavalier, Assorted Civics, Assorted Integras, Sentra SE-R Spec-V, F-150, Early Modded Golf, Modded GP SE, Stock GP GT, Altima 2.5S, Maxima. Killed By: Modded RSX-S, Heavily Modded Older RX-7, 2005 Altima 3.5, VW Bora Modded, Modded Turbo'd Jetta. Now retired till further modification.