A crop harvesting header including a carrier frame configured to be mounted to a tractor to cut crop. The crop harvesting header includes a header frame movably coupled to the carrier frame and defining a discharge opening on a rear side. The crop harvesting header further includes a discharge shaper assembly, which includes a height deflector. The height deflector is pivotably coupled to the header frame adjacent to the discharge opening to control a height of discharged cut crop. The discharge shaper assembly may further include a width deflector to control a width of discharged cut crop.