Originally Posted by Azrael

I have one, and must say, it is very unlikely to collect water. Even if it does, with today's technology, the amount you pull in will not be enough to hydrolock the engine. However, on very very humid days, you will notice that your exhaust drips. Or if you have racing mufflers/straight pipes/glass packs, it will look more like someone turned on a spigot (ok, not literally, but it will be more noticeable than with regular mufflers).