Heat sink style trans coolers?

I've got a slightly different version mounted on brackets between the bumper bottom and radiator support so it gets airflow from that opening. Summit Racing® Heat Sink Transmission Coolers SUM-331000 My Dart Sport has a small opening/window where the license plate goes, but it's a good spot can be done on a Demon too, which has a bigger opening for airflow. A location further back will be less efficient and have hot air from the engine & exhaust going by as well.