My S&B is still sitting on my porch waiting for installation. In all my reading before buying I never heard any mention of it sucking up water. I have heard some state that any CAI that uses an oiled filter may foul the MAF, but it seems to be a debated point. I have had oiled filters on other trucks and never had a problem though. I feel most problems occur after cleaning and are the result of over oiling. I am hoping I am never proved wrong.