NGM

Xcal2 is the way to go. You can have it custom tuned to your truck. Its a plug in program and remove system, so there is no chance of someone playing with your settings or even knowing you have a tune on the truck.

Ty

if you want to findout more about tuners, search for tuner on here, ther is lots of info.

cjbaja

Like everyone said the tuner is the way to go. I had one on my 05.5.4 super crew. Made a big diff. Worth the money!

Szam

Thanks for all the info

resq302

Just a curiousity question for everyone that has used the tuners.... I have heard that once you adjust the tuning on your motor, you now need to use a higher octane. Is that true?

NGM

Not really. I have 3 tunes on mine. One is for 87 octane. One is for 93 and one is towing with 93 octane.

Racinbob

You can see below what I've done to my F150. I'm a fanatic when it comes to tracking mileage. 17 mpg stock, 17 mpg with mods. Throttle response improved a little. The tuner may really help but the tradeoff for high octane makes it a hard decision for me. The truck isn't a powerhouse but it does a great job with my 5500# boat. I sure wish Ford would put a manual tranny in the F150.

whitecrystal1

If I'm not mistaken they do but only in the 6cylinder. Just add a supercharger and hold on

Racinbob

You're right Whitecrystal1, they do offer the manual with the 6 banger. But since the demise of the 300 straight 6 I want no part of them. The 4.0 is awesome in our company Ranger even pulling the boat but I can't imagine the 4.2 working in an F150 well. A supercharger would certainly put a lot of go in my truck but they just aren't for towing. The hotdog in me would still like to try it someday.

whitecrystal1

I didn't know that. So I couldn't use one with mine because of my load. What does it hurt if you have one and tow with it