Originally Posted by
KaiserM715
There are a couple of folks out there. Hennessey is selling a tune as well as JDM (both are on SCT handhelds, if I recall correctly). One thing to keep in mind is almost all of these tunes have no effect on Off-road mode.
JDM's website must be out-of-date.
JDM Engineering
Maximize the performance on your SVT F-150 Raptor truck with a custom tune from JDM Engineering. Team JDM has developed a custom tune file that will yeild more HP and Torque while improving fuel economy, shifting, and throttle response! Each custom tune comes loaded in a SCT Xclibrator 3 programmer. The X3 device is SCT's latest version of the Xcalibrator programmers which offers features such as datalogging, email tuning, and tune adjustments. The SCT programmer can hold up to 3 different tune files to help better suite your driving style and needs. You can also check and clear engine codes with this programmer. An estimated power gain of 15-25 HP is expected for the SVT Raptor 5.4 engine depending on the quality of your fuel.
Hennessey is offering 91 or 93 tunes (SCT XCAL3).
http://www.hennesseyperformance.com/62raptortuner.html