There are only a couple out there presently, however you need to be prepared that tuning will void your warranty unless you can take the tune in and out for trips to the dealer.
"Sofa King Tuned" is one that is very popular.
Kind of strange, I have accidentally left my overhead light on in the cab once or twice and it turns itself off after a few minutes. I can tell it was me because it comes on when I start the truck.
I am pretty sure it was the driving habits of the others and not the stock turbo. :) At this point in time the GDE tune is unavailable, do a search on this forum for more info.
That is fantastic news, nothing like ingenuity. Hopefully you can continue your work and provide great tunes for diesel vehicles. Super happy with mine.