You will need to add a switch in the cab to select the cutterbar pressure, and a gauge on the header. I think Gleaner may already have those as a "package". Otherwise should plug right in electrically. If your combine does not have the header f/a valve already, you will need to add that function to your valve stack.
The 9250 does not need lateral tilt any more than any other flex head...it just follows the ground nicer with it.