not positive i dont have the h22 in the car yet but the v2 did a hell of a lot to the stock motor...but i like it.. it sucks in the air into a 2 1/2 to 3 inch pipe then flows into a small pipe into the engine...

http://www.aempower.com/product_intake.asp?subCatID=4

there that site might help out a little...when i get the h22 put in the civic and the v2 put on if i can get it to fit ill but up the dyno charts and the specs with it...