The X4 Power Flash arrives Pre-Loaded with DYNO Proven tune files that INCREASE HORSEPOWER and TORQUE! Programming your vehicle with one of SCT's pre-loaded tune files is as easy as 1-2-3.
(Finding your PCM code is no longer an issue!)
On Class A motorhomes it is usually inside coach under drivers side dash around steering column and on Class C's it usually is in engine bay just under the brake master cylinder. The Ford X4 device works by locating the PCM code off the computer in your RV. (see below for details) SCT X4 Power Flash Ford Programmer 6.8L V10 RV Custom Tune
Please include your PCM code off the computer in the RV in the comments section during checkout, if vehicle is between 1999-2015 you do not need a code.