Originally Posted by DWWHemiguy
Did you load it to the truck and drive it to create a data log to send back? Or did the first custom file work for you? Just curios as to how the process works. I've used tuners before but never done a custom tune.
You'll do a data log showing your LT & ST knock @ Full WOT & Semi WOT & send him that. He'll send you a new file back, load it & do another data log. Send that file back & go from there