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  1. J

    any reviews on mm3 tuner for 6.7l CTD

    I just ordered one for my 2018 2500 Cummins, might be awhile before I get the delete and tune done. I'll post again about how it goes and works. I read a lot of reviews - here and elsewhere. Seems like there are a few out there that are good, I had decided on the Raceme or MM3, and ended up with...
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