Our stock rads are a single section of tubes. They're fairly large, but just one row in the core.
Remember for it all to work, the fans must be effective in pulling air thru the entire stack. Sometimes more is less...sometimes.
I was watching the Rolex 24 and after they had a show from this year's SEMA show and someone had a new line of direct fit OE replacement rads.....not the high performance verity...but all aluminum replicas of plastic tank/aluminum core.....I want to say it was fluidmaster, but I'm not sure. I should pay more attention, damn it!
Tom