interesting trans cooler location, I may have to replicate that. Have any more pictures of that? How is the airflow going to be with it there?
I don't currently have any other pics, but basically I made an aluminum plate that has three holes in it. 2 of the holes line up with the OEM muffler shield attachment points, and the 3rd hole uses a 2" long spacer between it and a tapped hole in the "frame rail." The cooler has about 1" of clearance to the plate, so it has room for air to flow over the core.
FWIW, I had a transmission cooler in the same spot on my car. Worked fine for my 2004r.
That's good to hear. I didn't really have another good location for it, and I figured it would get good airflow back there. The fan should help out as well. I plan on probably dumping my exhaust out the side of the car as well, so there should be no heat below the cooler.