Hey. I just an AEM Cold Air Intake on my civic, and I was wondering if it's really necessary to get a bypass valve? And what exactly do they mean when they say "...protect your engine in the event that your cold air intake filter ever becomes submerged in water."? Does this literally mean that your filter is underwater? Why would it become submerged in water in the first place unless you are like driving through a lake or something? Im confused.