www.cofairingco.com - under custom fairings tab and you would want a 52" x 9" fairing with a reverse smile shape since you have a front runner rack. The fairing will come with mounting hardware that will mount directly to your t track on the top of the front crossbar.

 

This looks to me like the factory installed wind deflector that pops up when you open the panoramic sunroof.

Here's mine for reference ("stock" 110 X):

 

The expedition rack is noisy on the highway. Very noisy. Esp with no sunroof since the roof panel vibrates and rumbles like crazy. It also takes 1-2 mpg off the mileage at highway speeds. The Colorado Fairing makes it 60% better or so.

If you really use the rack, who cares. If you only drive around town, who cares. If you like how it looks, who cares. I'm selling my rack and the ladder and just using Thule bars when I need them.

 

Racks are cool to look at. Like the previous poster said, if you use it, then it is a great tool. Most folks do not use it regularly, and it does bring down the gas mileage. I had one on a Defender and used the Colorado fairing, and it did cut down on the highway noise but not that much. It definitely helps though.