Yep I did buy it used but the guy said he installed the stock tune back on to his car before he traded it in.

Hello all!

I bought a Predator u7194 and went to test it out, and when I tried to install the tune it said the tool "is not licensed for use with this vehicle". It's for a 2008 Silverado 6.0L and looks like it should be compatible with the truck.

Anyone know how I can get it to work with the ...