Radium Dual Fluid Lock Catch Can Kit - Mazda MX-5 NA NB 89-05NOTE: The factory air intake box cannot be used with these kits. Reference the installation pictures before ordering. An oil catch can is essential on a performance vehicle to protect the engine from elevated levels of crankcase blow by accumulated from high performance driving. Excess oil saturated air circulating back into the air intake stream can lead to degraded performance. Radium Engineering catch cans feature large 10AN ORB ports, a 4AN ORB