I was looking at the ATRs intake mani but I think it'll be a bad mod for me. 1) I'm sure the bolt patterns different. 2) Its designed for high rpms were I'm lookin for gains starting at about 2-2500rpm. What does everyone think the ATRs intake mani properties are like? Are there any others for na that'll fit the h23? Is there a way to calculate the runner diamiter and length that would be good for my type of application?

Thanks

 

No one knows anything about non-vtec intake manis?!?!?!?!

 

port your stock intake manifold.