K/N s flexible hose kit is for use on the Orion Universal Air Intake System. One end of the hose is directed toward cooler outside air while the other end connects directly onto the Orion intake housing.K&N's flexible hose kit is used with the Orion Universal Air Intake System. It connects directly to the Orion intake housing using an included velocity stack to smoothen air flow. The other end is then routed to where cooler air flow can be found. The hose measures 70mm in diameter and 750 mm in length. Two zip ties are also included for easy mounting.