I haven't tried the modified 90hp tune I asked ray to do for me yet. Or the "smoke" tune
The 90hp I had some issues with the Ultra not allowing me to change out to a different tune and it changing back to the 90hp on it's own. It's not a tuning issue it's something in the firmware that a number of people have experienced with some of the newer updates

The "SMOKE" tune 120hp
As Ray warned me. It was possible my truck my run excellent with it or be absolutely nuts. There was no way of knowing. He told me the RPM's and throttle would be very touchy

The RPM's are very erratic and jump fast. First time testing it popped what most of you will call the lightning bolt
If I remember right the code was for not enough air

I'll run it again and see what happens

I did run it a couple weeks ago at the races for diesel truck night. Using tow/haul. It didn't throw any faults and was running great
Now with the grid gone that may be all it needs