I am thinking about swaping to an 04' PCM if i can. Me and another guy would like to go in together and get the HPtuners, but i dont want to pay the extra $450 to get it for 2 different years.

Maybe rent a new uhaul 04' silvy for $19 and try it out. If it works keep it and take the service engine light out, cuz i'm sure it would come on.

Before you say it, yea its wrong

 

2004's hav the tac throtle system, i dont thik it would work right, i dont know though

 

I'm not sure if the throttle is controled by the computer though.