I have an eco boost (13 Taurus SHO) and purchased a Livernois tune and tuner (MyCalibr8or) purchased through them. I was in the area so I stopped in and had them install the tune on my car they asked if I had any additional modifications to the car (Cold air intake, thermostat, etc.) before finalizing my tune (while I waited). I have been impressed with their tune. The car drives like stock when not mashing the gas (slightly firmer shifts) and has much more power (my SHO ran 12.9 at the strip this summer) when you mash the pedal. I have put on 20K miles since adding the tune with no ill effects. Also, every time they update the tune for my car they will email me the updated tune for free (I have had two updates since my purchase). Good luck with you decision, I think that you will be happy with you decision to add a tune to the eco boost.
I am not sure as to the exact power (to the wheel) that I was making due (before or after the tune was installed) to the fact that my car was not on the Dyno for the tune. When I was in there shop they showed me the AWD Dyno that is used in developing their tunes, etc. He did mention that stock the AWD Eco Boost vehicles have a very large drive train loss (I thought I was told that they had around 265 WHP). I can tell you that there was a significant change in power after the tune (my car squeals the tires from a dead stop post tune and the 1/4 mile time I turned for a non performance pack SHO). I have had the tune on my car for two years now and as previously mentioned they have revised the tune a couple times not sure on what impact that had on horsepower, if any? It may be best to just call them and ask for specific power numbers as I am sure they can give you a better idea.
Thanks again!! I will contact them when I'm ready, I was just curious if you had any idea about where it was.
Mark
My f150 has the max tow package with 3.73 gears . It is pretty good in stock form but would like more performance and better mileage towing . I am worried about any warranty work and being denied by ford if it needs work.