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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
If I was you I would buy a used flashpaq off of the classifieds of this or other dodge forums. You should be able to find on in the low to mid $200's. They have the same tunes, I believe the only difference is that the flashpaq is specific for the ram truck and the cortex can be used on different models.
They are locked to your truck once you change the tune to one of theirs and are unlocked once you swap back to your stock tune. So basically once I reset my truck to stock to load the diablo tunes, the SuperChips became unlocked and can now be installed on a dfifferent vehicle.