I haven't bought these, they are a bit too expensive.
I just got hold of throttle bodies for my CRX though, I'll play with that on my B16B first. If it is good I'm thinking of replicating the kit, as I know where to get most of the bits from. I wonder if I can make it work on NSX engine, I just need to make the intake manifold part, and adapt it to the throttle.