I've seen chips for the 03 Expedition, but only available for the 5.4 liter engine. I have the 4.6 and need more power either in the form of a chip or programmer or intake, etc. Whats out there for the 4.6? Seems there is more out there for the 5.4 liter engine. Any suggestions?

 

Superchips 1715 supports it.

 

I just added the SCMT 1715 on to my wife's '03 Expy with the 4.6, and it made a tremendous improvement over stock. The truck actually feels like it has some power now, especially from a dead stop.

I'm giving her a few days to enjoy it, before I put it back on my F250 w/ the V10. My truck feels like a snail now without it...

 

Thanks, I'll look into that.