Notice...the following is for a specific car, and has no bearing on your exact application.
A guy on one of the b15 (current Nissan Sentra) forums did a cool expirement on his Spec-V. On the same day he did back to back comparison of a cone style filter on a short-ram style intake (under hood) vs. a true CAI.
He used a high quality temperature sensor stuck in the air flow path (can't remember how he did that part) just in front of the throttle body. I will try to summarize his results.
At highway speeds there was little to no difference in the temps. It was less than 3 degrees difference between the two types of intakes once the temp stabilized.
Sitting at a stop light or in traffic, there was a difference in temps. Enough to notice power loss, I am sure...but I can't remember the exact amount.
Pulling away from the stop light the CAI cooled down quicker than the short-ram, but not too much quicker.
I will try to find and link the test later. I can say that I has a true CAI on my SPEC-V. After reading the article I switched back to the short-ram for my own piece of mind during rain storms, etc.
Just food for thought...