Looks like its not going to happen. I called nelson performance and they said they could do the tune but they arent sure about the wiring harness. They havent done one before. Also they didnt think they could help with the allison transmission. No one has gotten back to me from Tbyrne about using a throttle cable on this hog either and there is only 20 mins left. It is up to $720. I guess all the 8.1s come with drive by wire. Which is no good to me. The package doesnt even come with the drive by wire electronics.