What are some high-flow intake manifolds that fit the F23? I know that the H22 manifold will fit, but the ports won't match up. So, I'm looking for alternatives. I remember someone on this forum mentioning an Audi A4/A6 dual stage intake manifold. Would that work? After I get that straightened out, I can decide what kind of throttle body I want.

 

i got one from a 96 lx you can have for like some small change and have it ported and machined: it would be the best ever!!!!!!!!!!!

 

Is that intake manifold better than the one I have now? I might be interested if so.

 

so is the F22 abd F23 intake manifolds interchangeable:

*will the bolts & holts match?
*are the port the same?.......if not a big differeance i can always port a few mm.