I installed my Hayden transmission oil cooler last night and after driving around for a while noticed that transmission fluid does get extremely hot because I could barely touch the Hayden Cooler. I will be going SC soon so I want to keep the transmission super cool. I installed the transmission cooler vertically on the drivers side for better fit and more air flow. I was thinking of installing another one on the passengers side in series with the drivers side to cool it even further.

Also, has anyone thought about using this as an oil cooler, or are the lines to small?

two will probably be too much...for your application...it would seriously retard your flow on cold mornings...(I think)