Adjustable tuners
I have a 13' FX2 ecoboost. I'm looking for a possible tuner. My question is: Why isn't there an adjustable (on the fly) tuner. I'm coming from a f250 7.3 diesel and it was nice to have the power at the turn of a ****. Is this available for the Eco? If so, what tuner. In no, why not?

