I actually ordered the Contour fans, a BeCool set, a Dorman set, and a Jeg's set. I tried them all for fitment to the rad. The best was the Jeg's #555-52115 which are actually Maradyne fans. It really covers a lot of the rad surface area and has the little rubber flaps where it doesn't to allow airflow. So that's what I used and sent the others back. I like the Contour since it's a production car unit but with my 22" rad, it was too wide and would have had fans covering the rad support and not as much on the rad. I can say if you have the hood open and the fans on, there's a lot of air/heat blowing at you!