AEM cai adds atleast 5 hp...not 1 or 2. Short ram = crap and waste of money. Bypass valve = crap and waste of money. These DO NOT work unless the filter is completely submerged.
If u arent a complete moron, you wont hydrolock with a cai if ur carful when the roads are wet. Just use your head. Also a cai will benefit you car even more when you add a full custom exhaust (meaning header, midpipe, hi-flow cat, and catback pipe and muffler)