HKS Super Mega Flow Air Intake Systems - have been designed to dramatically reduce inlet restrictions posed by today's sealed factory air boxes, in both turbo and normally aspirated configurations. The design of the Super Mega Flow consists of a large velocity stack and a dual density polyurethane filter element at the inlet throat. A patented super-funnel design also allows maximum airflow with minimal turbulence inherent with box-type designs. All vehicle specific Super Mega Flow kits are CARB approved and 50 state legal. (CARB E.O. #D-186-19).