The part isn't quite the same as the factory alarm system. I'm not sure if the factory has the additional module or not, but I do know there is one thing that is different between the add on versus the factory option...
When you open the driver's door with the Ford security system, it will wait 12 seconds before going off. (Idea is you can open with the key and then insert it into the ignition before it goes off)
On the factory installed system, the car will chime and I believe there is a message on the small LCD screen about the alarm.
With the "accessory" add-on, the 12 second delay is still there, but there is no chime or other indication that the alarm is waiting to go off. It just waits 12 seconds and then goes off if you don't disarm it. Otherwise, everything appears to be the same.
This is INCREDIBLY easy to install. The dealer wanted to charge me $120 to do it. It's a joke. Instructions are here: http://www.fordservicecontent.com/ford_content/catalog/accessory_files/2011_2014_Scalable_Kit_Truck_10_18_2013.pdf
This item has a T-harness included in the box that plugs into the diagnostic connector under the dash. Then, you replace the old diagnostic connector with the other end of the harness. After that, you mount the box under the dash and follow the activation procedure in the instructions. Close the doors, unlock them, and then cycle the key from off to on 8 times, ending in the "run" position. The unit will then "learn" itself to the car and you are good to go.
The remote start feature is more involved, and requires the dealer programming tool. However, just the security system itself can be installed without any special tools.