I know there is a lot of threads already about this but here it goes....
I have a 2003 F-150 XLT 4x4 with an aFe cold air intake and a magnaflow exhaust, looking for a tuner that would fit my truck best

please help

 

EDGE EVOLUTION.. lot's of posts on this.. EDGE is super popular. Check craigslist and see if you can find a deal.

 

do you have that on your truck, also where exactly do they plug in at

 

I have the Gryphon with custom tunes.. but it's the samething as EDGE. Plugs into the OBDII port under the dash.

 

To learn about custom tunes, go to the aftermarket section of this website. There is a perminant thread that tells all about programmers. But BTW, i have an Edge and love it!!! got it off craigslist for a smokin' price.