i have recently been looking at some intake manifolds that are for sale, and i have been wanting to get one for my car for a while. i have a dohc NA application, and i dont know if any of the intakes are good for that. now i know that the amg galants were all NA, and they had a bigger intake manifold. does anyone know where i can get an aftermarket intake built for an NA application? and how do i know it would be good for my car? how much hp should i be expecting? does anyone machine a bigger version of the amg, or even just the same as an amg? these are my questions, and i hope that someone will be able to answer them for me. thanks. /ubbthreads/images/graemlins/smile.gif

i've always wanted to do this.

curtis custom big plenum cyclone manni

How about ITB's?

I have two 2nd gen manifolds sitting in the floor that I cut the map sensor mount out of for sheetmetal intakes I built for some local guys. I really need to write code and just cut a run of them be easier on me for sure.

I could finish cutting the plenum off and weld on a larger plenum and port from one end to the other. If you want it gasket matched for a 1st gen head could do that also. Send me a PM if your interested.

Quoting Andy_S:
How about ITB's?



This is probably the best for an NA application.

/brox