CUSTOM / RACING APPLICATION - Check dimensions for suitable fitment to your particular Make & Model. Dimensions - Oval Size: 167mm x 94mm / Overall Height: 91mm / Inlet Mounting Diameter: 61mm / Distance between Centre of Inlet Mounts: 85mm There are two individual elements supplied BMC air filters are designed as a performance accessory item. The benefits are increased air flow intake capacity combined excellent filteration to assist with engine, ignition or exhaust system modifications. The BMC Standard multi-layered 4 ply cotton fabric medium soaked with BMC's special blend low viscosity oil to contain airborne impurities down to 7 microns in size. The filter can be washed and re-serviced with the BMC Filter Care products to extend the filter life.