looking for a transmission cooler, apparently I need to find out what size I need as in the dimensions, before I order one. I have a 2005 c6 with the 4l60 4 spd. does anyone know or have a part number for one? I called summit amd they told me I need to have some dimensions before I order. having some issues when I autocross the car. so I think maybe a little more fluid capacity will help.