I have a 2001 Supercrew 4X4 with the 5.4. I need more power out of it. When I upgraded to some bigger tires (295's) it got even worse. It's completly stock right now. Is there a tuner or something for these trucks? No superchargers or anything like that. My mustang is already supercharged but need a lot of help when I have to tow it. Any help would be greatly appreciated!!!

 

Gotts intake mod, Long tuber headers, exhaust, gryphon programer

 

A gear swap would be beneficial as well.

 

Check out the "sticky" threads in the Tuner forum.