Originally Posted by jack1526
The hondata gasket is made to keep from hot air traveling back into your Intake manifold from the head. So that all the air coming in is cold, hence the term cold-air intake.
Actually, the Hondata IM Gasket just "shields" the intake manifold from the hot head. It doesn't keep air from doing anything. But yeah, I would put that on if you are gonna replace the IM.