I have had a diablo predator installed in my 01 7.3 psd for approx 1 year now. I have always had it set on the tow safe mode (40hp). The other night I was going to try and change the shift points on the tranny and the predator said it can not do that function with the present program installed (40hp). Maybe I am totally mistaken but I thought that was one of the features with the predator.

 

The features supported:

-transmission adjustments (none, firm & hard)
-speed limiter adjustments
-State of the art OBD-II diagnostics live sensor reading (not just a simplistic code reader)
-up to 30 minutes data logging at 90 samples per second that can be viewed on the Predator screen or uploaded to your desktop pc new feature!
-custom or modified files can be uploaded into the Predator without sending in the unit
300% larger viewable screen than other brands.
-Backlit screen allows you to use the tool in full sunlight or total darkness
-Full text OBD-II Diagnostics + diesel specific diagnostics
-Real-time sensor input data monitoring (fuel, MAP, coolant temp, RPM, live diagnostic codes, etc.). Over 100 parameters can be monitored in real time.
-Read and clears DTCs (Diagnostic Trouble Codes) with full text DTC explanation.
-Can reprogram performance tune or restore stock tune even if dealer reflashes the ECU
-Port which will allow future download of updates and customized programs
!