hopefully you looked up a how to. for this, it requires a few extra parts and I think somone actually sells a package for it.
You can find a used one for about 100 bucks, i have one laying around, but it's there for when/if my PI plastic crosover starts leaking.
to avoid confusion ganzy, always refer to right/left from driver position, it's something I got beat into my head at a young age growing up in a body shop, and now working for an auto manufacturer.