A salesman is always going to tell you something to get you to buy one thing over another. If one Bullydog part # can tune Chevy's, Dodge's, Ford's and who knows what else, how can it be the best tuner for an F150? http://www.bullydog.com/documents/GT%20Gas%20applications%20chart.pdf PHP Gryphon (rebadged Edge) w/ custom tunes FTW