When the IPS intake manifold was first introduced in 2006 or so, it was a $2000 intake manifold that promised better gains than ITBs. However, you don’t see that many of them floating around because of IPS’ poor business practices.
Many IPS customers had pre-ordered and paid in full for the intake manifold. Five years later, these customers still haven’t received their intake manifold or a refund. Hell, customers were lucky to even communicate with Ron, the owner of IPS. This can be verified with Google or a search on K20A.org. Anyways, here are a few pictures of the “rare” IPS intake manifold.