B58 BMW/Supra BMS Oil Catch Can Oil Filler Cap Dual Vent Connection Kit

This kit replaces the factory oil filler cap on B58 BMW or Supra engines, adding a second vent for improved crankcase ventilation and oil vapor capture.

• The description claims double the captured flow by adding a second breather port.
• The description claims cleaner combustion air by reducing oil vapor recirculation.
• The description claims maximized catch can efficiency when used with any BMS catch can.