You can go with a single fan like a 40mm and they are easy to bolt pretty much anywhere. I tossed one on my chinese motor (which has since been replaced by a neu) and that lowered my temps by about 30 deg or more...I went from 185 to 150deg then added a neu motor which dropped my temps all the way down to 110deg...here's some pics of it good luck. http://s283.photobucket.com/albums/k...riedfatnhorny/