here is the scenario:
I have a 2000 silverado that i just got done building a turbo 5.3 for. I am planning on doing a 3bar OS and a segment swap to a 4l80 in the next little while as the truck gets closer to being finshed.
I built this motor around one of matt happels fairmont builds and i have his tune that i was going to use as a starting base tune since our builds are nearly identical. currently his tune is already upgraded to the 3bar OS and is segment swapped for a 4l80.
is it possible for me to licence his tune and do a "write entire" with his tune where its already upgraded to the custom OS? looking through his tune he also started with a 2000 silverado tune. I am just unclear if its even possible to do or if it might brick the PCM. If worse comes to worse i can just segment swap my current tune and upgrade the OS but it would save me some time if i could just flash his tune to begin with
thanks!