I am looking at purchasing a programmer for my truck in the next few weeks. I am trying to figure out the pros and cons of each. I have looked at the hypertech, edge, bully dog, superchips, diablosport turners I am sure there are others out there that i have missed. I do alot of hauling and highway driving. So i'd like something to help with my mpg's aswell as power when it comes time to tow. I just added 35/12.50/18s so i would like to get something that will help make up for the tire weight aswell. ANy insight to what would be my best option would be greatly apperciated thanks. I have a 05 f150 5.4

 

If you want to know about SCT, Franchi on here is a dealer for them. He'll tell you all you need...

 

With those tires in would recommend upgrading your rear diff to 4.30 or 4.56. It'll help take some stress off your tranny and it'll restore some of that lost power. Look at the edge evolution programmer. Good unit.

 

I agree 4.56 gears.