K&N Universal Air Filters are designed and manufactured for a wide variety of applications. Regardless of the angle, offset, or diameter of the air intake, there is a K&N Universal Air Filter available for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment, and can also be stretched up to 1/8Ã¢??Ã¢?? (3mm) to fit in-between sizes. K&N Universal Air Filters are available in round, straight, tapered, and oval designs.