Nissan S13 240SX (All models/trims/RHD/LHD)
Nissan S13 Silvia (All models/trims/RHD/LHD, excluding CA18DET)
Nissan S13 180SX (All models/trims/RHD/LHD, excluding CA18DET)
Nissan S13 200SX (All models/trims/RHD/LHD, excluding CA18DET)
Radium Engineering catch cans feature large 10AN ORB ports, a 4AN ORB drain port, 2-step oil separation baffling, and an O-ring sealed dipstick. These 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 for optimal performance. Furthermore, closed systems prevent unwanted oil vapors from entering the cabin. The dipsticks built into the catch cans allow easy inspection of accumulated fluid. No cutting, drilling or permanent modifications are required. For more information on Radium catch cans, CLICK HERE.
DUAL CATCH CAN KIT, NISSAN S13
For the ultimate in engine protection, Radium recommends 20-0727 Dual Catch Can Kit, Nissan S13. 
This kit utilizes both the "PCV" and "CCV" catch can kits detailed above.