SCT x2 vs SCT x3

[Houston94vert]

What is the difference and reason why they have the two different SCT tuners..

SCT XCalibrator 3 Mustang X3 Power Flash Tuner (96-08)

and

SCT Mustang XCalibrator 2 Tuner (96-08)

 

[NastyStang113]

The Xcal3 supports more computer codes, different screen, and a few other little things. It also comes with canned tunes.