whats the point of funnel air?
With a Short Ram Intake
like this one, the filter would simply sucking up the warm/hot air from the engine bay. This is bad for performance (actually rendering the modification useless as a power gain), and slightly bad for the engine too.
That is where the cold air feed comes into place, as engines run best off cold air. When moving the feed supply's a nice amount of fresh air directly to the filter, optimizing the ram filter's benefits in performance. Works a treat on a cold night