Ok, i need some help fellas.
This is what I have right now:
In a box, I have my Stock ECM safely stored away.
In my car, I have an Extra ECM with Westers Race Tune.
How can I get my Extra ECM with GMPP Tune + Westers Tune without having to take my car to the dealer with the Extra ECM installed??
Can I take my car into the dealer with my Stock ECM and have them put the GMPP Tune on it, and then come home and do a full read (about 20 min) of my Stock ECM, then send that file to Lyndon for an updated tune and then install that new Westers Tune onto my Extra ECM?