Can anyone help me out with this, I have a lb7 that had a dsp2, I've made quite a few mods, now tunes most likely need updating because it doesn't run as well as it used to, also it's locked and have no idea who tuned it. I purchased another ecm with dsp5 unlocked and a v2. Is there a way to change the vin# without having to use 1 of my licenses. Other update info would help as well.
I guess is there a way just to update the vin#.