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Thread: Re-Flash after Smarty 67 tuning

  1. #1
    Junior Member
    Join Date
    Apr 2009

    Default Re-Flash after Smarty 67 tuning

    I bought a 2008 6.7 Cummins that was tuned using a Smarty 67 box tuner. Having reloaded the stock truck tune back in is it safe to flash in an EFI Live tune? I do have what I know to be a "clean" stock tune for the truck, should I flash that in prior to loading the EFI Live tune? Any feedback would be appreciated.
    2007 2wd RCLB LBZ w/6spd Alli
    Extra Air & Fuel
    Still tweaking

  2. #2
    New Member
    Join Date
    Feb 2012


    Yes flash the clean file first and make sure everything works right and then tune away.

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