I'm not sure AEM makes 2-piece CAIs anymore...i could be wrong though.

Humidity going into the engine is not harmful in the slightest to the engine...it might reduce power ever so slightly, but it can't hurt it.

Most simple and safe solution: get an AEM bypass valve and never worry about a thing.

I never really understood why there's always so much debate over these topics...if you have a CAI and are worried at all about hydrolock, get a bypass valve and call it a day. Some people will claim it'll slightly hurt performance, but honestly, if you're able to notice such a slight difference in power, you'd be working on a whole different level on your car and you wouldn't be getting a CAI...