I guess you guys haven't seen an AEM intake on other vehicles. This is a common feature that nearly all of their intakes use. It only opens when the bottom filter is fully submerged. Air is easier to pull than water so it will simply pull air through the gray foam. Otherwise it stays shut and all air is pulled through the cold air intake at the bottom. This isn't something new and it doesn't destroy all the power losses. With the vast amount of knowledge here I'm surprised you guys haven't started your own intake companies.
