Is it beneficial to extrude hone stock intake manifolds, say, a b16 one? Does it make power? how much?

 

i dont think its worth the cost personally.

 

i have to agree, one guy on honda-tech paid like 300 for it.

Why not just buy Skunk2 or ITR?

If you really want air flow, get a JG or something

 

Does anyone make IM's for the H22? Or is the Type S the only upgrade?

 

the euro-r manifold is pretty much the only viable all motor upgrade right now. It requires a bit of work to make it fit.

I am personally still waiting for the skunk2. even though it has been promised for years now, i still try to maintain hope...=/

 

I always heard that you want to leave the intake a little rough, something about it helping atomization of the air.