Straight Success · Touchdown! Joined May 13, 2009 · 1,493 Posts Jun 22, 2017 Report It's an option, but you do not have to. It's redesigned to work without leaking and allowing oil to flow through the passage still. I'm in the process of making a video of it installed.
It's an option, but you do not have to. It's redesigned to work without leaking and allowing oil to flow through the passage still. I'm in the process of making a video of it installed.