K&N 59-74 Rover Custom Round Race Filter Length 6.56in Width 6.31in Height 2.25inK&N Custom Air Filters for Single or Two Barrel Carburetors K&N custom air filter kits are designed to boost performance from your carburetor while keeping the dirt on the outside where it belongs. These assemblies come with custom chrome top and base plates and the famous K&N High Flow Washable Air Filter. Installation Instructions