i did a search and haven't found any programmers for a 2007 4.7.
i tried superchips (not familiar with any others) but they don't show one. i'm looking to gain a little MPG and maybe a few extra ponies while not voiding my warranty. any other ideas? i think the furthest i'd like to go is a programmer or maybe a k&n filter or air inlet.
i'm getting about 14 mpg in town and would like to gain as much as possible.

 

Nobody makes one yet.