I bought a SCT SF3 that came preloaded with the Bama tunes from a guy. He flashed it back to stock tune in his auto car before trading it in. He told me that just reloading the stock tune unmarried it from his car and will allow me to use it on my PCM with a different code. Is this true? My car is a M6 so of course it has a different PCM code. It would have to be unlocked for me to load tunes on to my car correct?