Originally Posted by Jpiwonski
Is it from diablo directly or an aftermarket programmer like hemifever?
All of the tuners are made by Diablo. Sean (hemifever) creates custom tunes that you then load onto the tuner and then into your Jeep.
Not sure if kato's tuner has any custom tunes on it, but when I sold my tuner I was informed that Sean won't provide support for custom tunes purchased "second hand".