I've got this Megan elbow I bought a couple years ago for a 240SX with a CA18 I had. I never really even used the thing and I might even still have the gasket with it. I should still have the bolt to cover up the o2 bung in it.

They're $125 new, make an offer. This thing has about 1/2 a mile of drive time on it. I can take a pic for interested parties if they want it.