Radium Crankcase Catch Can Kit Fluid Lock - Honda S2000 AP1/AP2 99-09Radium Crankcase Catch Can Kit Fluid Lock Honda S2000 AP1 AP2 1999 2009 An oil catch can is essential on any performance vehicle to protect the engine from elevated crankcase blow by accumulated during aggressive driving. Excess oil saturated air recirculating back into the intake stream degrades combustion efficiency, fouls intake valves, and reduces thermal efficiency in intercooled applications. Radium Engineering catch cans feature large 10AN ORB