Intake manifold

[civicracer5000]

I have a civic with a D16y8 and I know a few people who change theirs intake mani for a gsr or a si, now my question is:

does the maifold swap increase hp?

is it bolt on or need modification?

I'm just wondering

Thanx in advance

[obd1kenobi]

I Really dont think thats going to work!

[green91]

your not going to get a gsr or si(b16) intake manifold on your d-series. sorry. the intake manifold youve got right now is considered to be one of the best for d-series.