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Discussion Starter · #1 ·
I bought a predator tuner. Tried to upload a 91 tune in it, and aparently my truck has a "non stock" tune in it.

I don't want to go see a dealer to put the tune back to factory, can somebody send me the stock cal.

And I know the stock cal won't program with the tuner, but I have a buddy who can flash it with the mongoose flash tuner.
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