[SteveAZ]

I think there is a whole lot more going on than the turbos simply suck in all the air they can and efficiency can't be improved. If so, block off one of those intakes above the radiator and let us know how it works out for you.

I'm not proposing that we are forcing air in to the turbos...I get the concept of vacuum but if there is a restriction created by more demand such as going from 8psi stock demand to 18psi tuned then those inlets MAY be a limiter. The only way to overcome that is with a larger opening or pressure. On top of that there are more forces at work here....how about the venturi affect at higher speeds of the air rushing past a parallel opening and creating a vacuum of it's own?

As for the Cyba scoops....if there is an efficient way to increase airflow...I definitely don't believe that those are it and may even hinder it more than anything by creating too much turbulence.