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lost factory tune

  1. Lost the factory tune

    6.4L Performance Parts Discussion
    I have the Bully Dog PMT on my 6.4 L and I've traded it for a new 6.7 L. I wanted to remove the PMT, but when I went to reinstall the factory tune, it said to insert the SD card. I cannot find the SD card that I assume contains the factory tune. What are my options here; and can I salvage the...