Cold air water damage?

I just traded in my 93k mile 2003.5 Mazdaspeed Protege on a 04 Mazda 3 with only 35k on it. When I bought the car it had a cold air intake and exhaust on it already. The cold air intake is mounted right infront of the driverside tire. I live at the beach and drainage is a big issue. Does anyone know what I can do to prevent the intake from sucking in water?

Dont drive through Large watter puddles. If you have to... DO NOT go WOT

shorten the intake pipe make it short ram.that way you don't blow or hydrolock your motor

About what kind of increase in hp/torque, and translated 0-60 time, could I expect if I were to have the mazdaspeed CAI installed? How much would it differ between the short ram version and the full-length?