Just wondering if anyone ever used one before and how well it works out. Im putting a c6 in now and need a transmission cooler, and my engine oil cooler can use an upgrade so mind as well kill 2 birds with 1 stone. The one I am looking at is Perma-Cool Maxi-Cool Dual Circuit Fluid Coolers p/n 13311. You can also get an thermostat for it, 170 degrees on and 162 degrees off.