Radium Engineering Triple Fluid Lock Catch Can KitNOTE: For RHD vehicles, some modifications may be required for PCV catch can mounting. Radium Engineering Catch Can kits mount using factory holes and integrate perfectly with the surrounding components. They do NOT vent to atmosphere (VTA), thus are emissions and track legal. Closed loop systems remove the oil and sludge from the PCV gasses before it is routed to the engine to be burned. A closed loop system also promotes negative crankcase pressure