i was wondering what this intake manifold be compared to? would this be better than crx/civic si's intake manifold or about the same? reason i'm asking is i'm getting a d15 head and intake manifold for free and i wanna know if i can gain anything at all with this im since it looks different from an ef. thanks.

 

same thing as a ef si manifold..the diferrence is the throttlebody has the map sensor on it..