[mrimpractical]

What specifically is different with the programming? This is programming that I can't change with a chip? I'm fairly familiar with tuning cars, I do own a wideband and I have run several computers with "different programming" in other vehicles that I have modified in the past with NO problems. I've done crazyness where I used auto trans computers in sticks and piggybacked a pcm in my 94 lightning with a a9l processor from a mustang to convert it to sfi and still maintian the factory computer for the compuerized trans. I don't understand what would be soo different that I can't change when the car is dyno'd. I really don't see an huge advantage to the stage 1 IMO to justify the cost from what I have read, especially if I can just change a few paramaters when it's dyno'd. I got the stage 1 out of a SRT4 that I did the stage 3 conversion and the owner is currently having that pcm reprogrammed. Which makes no sense to me. Maybe I just don't understand these pcm's since I haven't had experience with them.