Block Plug and Breather fittings are used on B-Series Engines to block off the OEM breather box port and allow you to hook up 10AN hose ends for a catch can / breather system.
Fit for B16/B18C Engines Only
Double O-Rings for a tight seal on the plug.
Made from Billet Aluminum.
CNC Precision Machined.
Package included: 1 x Block Plug (with o-rings); 2 x Breather Fittings (M28 to -10AN)