Originally posted by EKHatchRacer
no they have everything to do with smooth airflow underneath the car. kind of like those drag racing rear bumpers with holes in them that let the air escape. on a stock bumper it kind of scoops air inderneath creating some drag.
Yes, it promotes smooth airflow under the car. Now think about this for a second... if the air isn't going in a straight line, where is it going?