I have a 02 f250 5.4 6 speed and a 03 expedition 5.4. can I get a programmer or tuner thatll work for both? They're both on 35s and straight piped in place of muffler

 

The same tuner will work for both of them but they can't both be tuned at the same time and don't expect huge improvements in power from either of the trucks. Most here including myself will recommend sct tuners and 5 star tuning for custom tunes for gas engines.

 

A lot of helpful info on her, combined will exceed expectations. One tip I can add is put nitrogen in your tires. It's a lot lighter than air. With that being said, if you're desperate, strip it. Remove any excess parts and pieces you can do with out. Take off the side steps, they are heavy, take out the 3rd row. Take off the luggage rack. Every little bit helps