I just heard about this on the ClubFrontier forums: the CSF #7029 all-aluminum radiator made for R51 Pathfinders and 2005-up, V6 Frontiers/Xterras, is no longer being carried by Off-road Gorilla due to the number failures that their customers where having with them. Also, I no longer see it listed at Stillen's site.
http://www.offroadgorilla.com/shop/csf- ... inder-2005
I just wanted to give those that have them a "heads-up!"