The interior shapes, especially the critical radius leading into the carb or throttle body, have been carefully designed. The outer cover incorporates an additional scoop to direct air into a high-flow, washable foam filter element that seats snugly in the end of the round K&N filter element. This filter assembly is one of the best flowing on the market and is capable of supplying enough air to even the highest output street motors. The fontal opening is huge and as with all Hyperchargers, the vacuum operated butterflies allow almost unrestricted airflow to the filter under high-load riding situations.
