Trying to install my Bully Dog Powersports Tuner/Device and getting Error serial mismatch

    December 23rd, 2020

    What to do if I'm trying to install my Bully Dog Powersports Tuner/Device and getting Error serial mismatch?


    This means that the ECM serial number does not match the serial number that the tune was made for.  Please contact your custom tune dealer to have corrected.

    Was this article helpful?

    Can’t find what you’re looking for?

    Our Technical Support team is here for you.

    Contact Support