I may have stumbled across a way to disable the DOD that anyone can do in their driveway.. After picking up the GXP from Triple Edge I noticed my DOD no longer engaged. I detuned and flashed back to stock before I took it in for the transmission. With no cat the Engine light was always on. Had me worried all the way home that something serious could be wrong. When I got home I plugged in the Tech 2 and found my OPSU was bad. Since the DOD operates on oil pressure and an electrical signal to the solinoids I can only assume if the system can't see oil pressure it's fail safe is to disable. If someone wanted to check my theory they could unplug the OPSU on their intake under their throttle body and see if they get the same result. Granted your Engine light will come on but since mine is on anyway it doesn't both me.