K&N Universal Custom Air Filter Round 5.125in Flange 14in OD 5.125in ID 5.625in Height The English alphabet typography illustration Free stock vector 488553 Letter K, Kangaroo Illustration Free Stock Photo Public Domain Pictures Krack Shot Kroc Super Mario Wiki, the Mario encyclopedia K Letter PNG Transparent Images PNG All. K&N's custom air cleaner assemblies are designed with the racer in mind. They incorporate good looks as well as the superior air flow that you expect from K&N. These custom air cleaner assemblies are designed for use with any engine that uses a round element air cleaner housing. They incorporate our famous K&N Air Filters and provide more air flow than other assemblies of this type. Available in 4 different designs, the perfect assembly is sure to be found here. Each complete assembly comes with base, element, and top plate. Washable and reusable air filter Incl. K&N Air Filter