That particular fan frees up HP over other fans. Mopar sez it's good for 15 HP.
I read 2 different mags dyno results that comfirm it. How would it be nosiey? You'll never know it's there, it's a flippin fan in the engine compartment like any other fan?
I don't understand the question on how it could be loud. How does a mech. fan like that be loud to begin with?
Flex fans are nosiey.