This is the Part# 9177095 (bottom of the page in the link above). I bought 2 different ones. They both do the same job but the second one at the bottom of the page has a hole cut in it if you are going to connect up the breather pipe back to the intake pipe. You will also need to attach the fuel pressure regulator pipe to the inlet manifold to maintain the correct pressure. It just slips onto a spare outlet branch on the side of the inlet manifold.
I tried securing it back to the intake pipe but as we now know after Vockys tests, the reg pipe does need to go to the inlet.