I saw that on the Be Cool, it said something like that it helped direct the outlet toward the engine. I never experienced a radiator that had an outlet like that and it would seem to get in the way of things like the shroud to me. Another thing I noticed was they were talking about having a tapered tanks, I am not sure why you would want that, it would seem to reduce the capacity and make it harder to seal around the tanks being angled like that?