Originally Posted by Shadowmind
What if you want to swap 'the tune' out when you go in for a service for your regular 'tune'?
How do you fix that little problem?
My Chevy mechanic said, "Get another computer so you get the downshift right, then swap it out when you need to bring it in. We have Corvette guys that do this all the time. You can do it on your own."
Otherwise... You're SOL when you take it in for service and they check the tune on the car.
depending on the chip, it could affect the pcm in the same way a regular tune will when GM hooks it up to the scanner. go get a new pcm and have it tuned then swap back to stock when you go to the dealer, but its one of those things, you gotta pay to play