If you buy the tuner from Hemifever or Moes the custom tune is free!
Worth the extra cash. Also, the DS tuner does part throttle shift points for 1-2 and 2-3. Dont think superchips has that function. Also, DS has a tuner for 489 with custom tunes that you load and unplug. No gauge display but my Evic has all the gauges I need. And I data log frequently and get all the data I could ever need about my motor function. The custom tunes are way stronger than the 'canned' DS tunes.
If you have the tuner already the custom tune is 125.