Increase airflow to your factory intake box with our ram air induction scoops. Other aftermarket induction kits mostly suck in hot air causing a loss of performance. The use of heatshields are not very affective as heat shields mainly work to block radiant heat. Utilizing the stock intake boxes, expect an 10-18whp gain with 70mph airflow. RPi Ram Air Kits come with a high performance BMC air filter.