I just picked up a 17 EL 4x4. I had a great performance tow tune in my 5.4 F150 that I traded in (returned to stock tune first). What benefits will I get out of tuning the ecoboost expedition? It will be a daily driver for my wife but will also be towing my travel trailer now that the truck is gone. I don't want harsh shifts or to mess with my powertrain warranty but the electronic throttle improvements would be nice.