Sealed intake increases airflow for dyno-proven performance and improved throttle response Large sight window for easy viewing Massive air filter with Pro DRY S dry synthetic media for maximum convenience Product covered by one or more of the following patents: 11745129, 9440175, 11376536, 11219850, 11331607, 11135538, 10252202, 10532304 This item is 50-State legal: CARB EO# D-550-13