So I recently installed the AEM CAI and if it's not actually pulling harder, the sound is certainly making my brain feel like it is. I like how the ducting in the front grill actually feeds fresh air to the filter while driving but I was a little concerned that it could also be feeding rain back there while driving. So after driving home through a hard rain the other day, I pulled out the filter and sure enough, it was wet. Not soaking wet and I didn't notice any issues but for piece of mind I want to install a pre-filter (hydroshield). Anyone have the part # of a pre-filter that will fit that huge AEM filter?