jsut a quick question. what are the IAB in a integra?? is it the buterflies that open up at 5600rpm??? and if i have a skunk2 intake manifold then i dont have those anymore right?? sorry if this is a dumb question. jsut looking for insight on this and ill be on my way.

 

Skunk 2 manifold doenst have secondary butterflies like a stock GSR manifold. The Skunk 2 just has single larger primaries like a ITR or CTR.