Carrerarod,
The Airaid costs about $250. Much less than many aftermarket air intake systems, but still a sizeable investment. But, if you already have one and were happy with it, it sounds like a good deal... I would definitely be interested in your results with the H2!
It seems most of the time people who replace the stock air intake say things like: "The new system has a great SOUND to it, and the engine's power "seems" a little peppier even though I haven't really noticed any increase in fuel mileage..."
If the main improvement is a throatier sound, I'll save the $250. and buy some new music CD's. Maybe some new Dixie Chicks albums?
Ed