I'm glad everyone is having such a good experience with their Predators, I for one am not. I got mine from HHP on friday and was ecstatic. I went to plug it in and put in the 91 Octance CAI tune and I get a message that says "This tool is not licensed for use with this vehicle" WTF? So I call Diablosport and they tell me that someone must have used the programmer before me and that is why its locked. I look in the options and follow his instructions and it shows no VIN written to the programmer. But he insists that that is the problem. I find that hard to believe since it came in a sealed box but whatever. I called HHP this morning and of course they are closed for some Diablosport Event so I F****d until they open, then I have to wait for another one if they even have any more in stock. This sucks!!!