What makes you say that? That graph is with no mods outside the tuner.
So for the $600 I can use any tune by downloading it? No additional cost?
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Would love to tune my truck but i hear the tune disapears after a few hundred miles. Man there is no suport on these ecoboost trucks. Been waiting for two years and that bit of info i received was not what i wanted to hear. After two years of waiting i think its time to sell and buy something else.