What is a good tuner/programmer for a 2010 expedition with the 5.4?? I am looking for better mileage not really power. but if i get both that's great too!

 

I've poked around just about every ford forum there is. Seems like 5 Star is the place to go for a custom tune.

I'm going to get a tuner for my F150, if I like it, my 2014 Expedition is next.

 

ok thanks. I have as well but never heard of 5 star. but I think I might try it.

 

Custom Dynomemeter Chassis Tuning Products and Services - 5 Star Tuning

 

so what about diablo and bully dog??? or edge?? Also, is a CAI and a cat back system going to be that much of a help??

 

is there anyone on this forum page????

 

if i get the sct x4 can I use it on 2 different vehicles?? or just one??

 

I believe you have to flash the original vehicle back to stock to be able to use the tuner on a second vehicle.

 

No. The cat-back will give you more sound and perhaps a little more power/torque within a given range, though you may lose some power/torque in another part of the range. The CAI simply isn't worth the money. It's costly and will provide little, if any, benefit - and it may even draw hotter air than the stock system. FWIW, I think Magnaflow and Gibson have the 2 best cat-back offerings for the 3rd gen Expeditions.

The Superchips Flashpaq is the only tuner I am aware of that allows for 2 vehicles. Even in that case, both vehicles must be of the same make.