fyr45,
I would post on the F150 forums. The Raptor center headrest for 2011 should be the same as on the F150's of similar grade. If your 2011 is loaded look for the Lariat level etc.
There were only about 20,000 Raptors; 500,000 F 150's....
Also most boneyards are connected...go to your nearest junk yard and ask them to do a search if they don't have one in stock...I guarantee you'll find one fast!
Eddie