Unique One-Piece High Quality Housing w/ Sight Window:_x000D_A custom computer designed roto-molded housing eliminates the use of multiple components and ensures the coolest air intake charge available. A clear sight window allows for filter inspection without removal of the airbox. The roto-molded housing is made of heat soak resistant cross-linked polyethylene. The housing is designed to retain the same water fording height as the factory intake system while providing more air flow and better protection.