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  1. 10r80 harsh downshift after tune

    have a 2018 Ecoboost 10 speed and this transmission is annoying the heck out of me😂 I am at 58k miles and I got a transmission replacement about 1k miles ago. The car was shifting smooth but as soon as I put a tune on it, downshifting from 4-3-2-1 is super harsh. I got my tune from tune+ and he...





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