I was thinking $700-$800 without the TB would be about right. That's what I paid for my highport O2 induction manfiold. Before this thread goes any farther, do you have a list of what people are wanting? What will the prototype manifold consist of? I know exactly what I want for my N/A 2.3L setup. Just trying to see what kind of direction this is heading in. I can PM you my specs if that helps. I don't post on here much as I have other things that take up my time, but a few of the OG guys can vouch for me. When I say I'm interested, I say that with money in hand. Again, thanks for doing this and I hope to see some good results for a future purchase.