Cold Air Intake...

[RedRide]

Yes.... most moderen stock intakes are well designed to begin with and adding a CAI usuially does not give ay notiocable gains.

As far as a CAI giving an engine more cool air, consider this......... most stock air boxes have an air inlet in front of the engine, near the grill.
Besides, when the car is moving, "cool" air is constantly being directed to a stock intake's inlet.

When the last gen Celica was released, a dyno test was done with and without the stock air cleaner element installed.
To his surprise, just removing the stock paper filter with the stock airbox gave about the same gain as installing a CAI with a free flowing air filter on the Celica.

So a free flowing filter (like a K&N) with the sock airbox can often give the same gains as a CAI.

Don't forget that any published gains are in the top end with the stock airbox using a restictive paper filter vis a CIA with a free flowing filter.

IMO most just install a CAI for the sound and the "WOW" factor.