Okay so I'm looking to sell my predator programer but before I do, I'm wondering if I have to wipe clean the tunes I've put on my truck with it. I installed the 87 Tune that came loaded onto it, and that's it. Can I leave that left on my truck, and still sell the tuner? Thanks for the help. ~If anyone's interested in purchasing, send me a PM. I'm also putting a thread in the marketplace forum.