This intake kit eliminates the restriction found in the air box to increase airflow to the engine, which provides more horsepower and throttle response. It utilizes one of our Powder Valves™ and pre-filters which are strategically placed in the lower air box in a position where it draws cool air. It is activated by air box vacuum. As soon as the engine intake needs more air than the stock system can provide, the Powder Valve™ opens, delivering the required amount of air to the engine allowing it to run at its peak. Powder Valves only, airbox not included.