Well, If you look at a stock filter box, the intake for it is right over the radiator.. in an area where (in my opinion anyway) the only real airflow to it is thru the rad... With a cone filter, you can take a piece of ducting, and run it from a source of cool air and have it dump into the area of the cone filter... Thats what I am planning to do as soon as I get my Filter from Aaron.