Banks Ram - Air Superiority. Flowbench developed, dyno proven. Improves airflow 38. Enclosed housing keeps out hot, power - robbing engine air. Easy filter access for monitoring cleaning. Banks Ram - Air Intake System outperforms the rest and flows up to 38 better than stock The system's dome - shaped cotton gauze filter flows more freely than the factory's highly dense paper filter, and the contoured, aerodynamic shape eliminates restrictive sharp bends and chokepoints. Designed to work seamlessly with stock sensors and not generate trouble codes. Utilizes factory bellows to accommodate engine movement for greater durability. Easy install, the reusable filter is easy to access for monitoring and cleaning. (Unlike the stock filter, which is difficult to access ... not reusable ... and when dirty, requires replacement of the whole expensive unit).