Yeah i got a B in aero here at the academy so i have a very basic understanding of airflow, and on top of that we barely scratched the surface (of air?) of aerodynamics and airflow properties, but with this little knowledge i dont think the stock hole will add any resistance, I just think it will keep the air from the ram air intake to build any pressure, so it is just clean air coming into the engine versus pressurized air that would enter if it were a turbo or supercharger or something like that. but hey with a valve or a direct ram air intake it might build a whole .1 psi greater than ambient air pressure!
but hey, i feel good about getting the clean colder air coming in, now my question is what will happen if im driving behind one of you smokers with rear exit exhausts and i get all that in my engine?
haha jk, i dont think that would do anything :p