How many CFM do the fans flow? How many amps do they draw?
Sorry, but I've seen those set ups before, and they just look cheap. The wiring and connectors aren't high quality, same for the fans.
And I'm not saying that my set up looks high quality, it's just a big hunk of plastic ;). But I know that the whole thing was original designed by Ford and Bosch, was intended to last at least 100k miles, and that it will pull 3,500 cfm on the highest setting. I forget the amp draw, but I knew it before I installed them. The wiring and connectors are heavy duty, weather resistant, OE items. I was leery of even the Dorman reproduction fans, so I have a set of original Ford motors that are made by Bosch that I pulled from the yard, along with the wiring harness.
The only info I've ever seen on those fan set ups is the amount of hp they're supposed to cool. Which is a joke. Where does that number come from? What thermal efficiency are they assuming?
Again, sorry, but the extent of that fan system is a couple of generic fans bolted to a cookie sheet. I seriously doubt it's been tested to see how many CFM is actually pulls as built, which is not just the sum of the fans. I'm not saying it doesn't work, it obviously does. But there is a difference between a set up like that, which is a couple of generic fans bolted to a shroud, and the Contour set up, which was designed, tested, and rated. And since the Contour set up can apparently be had for less money, I wouldn't spend money on a thrown together aftermarket set up.