the better vent design to use is the one designed to suck the hot under hood air out.. not the scoop used to force air in, like those on the Impreza STI...
notice the vent design on the front of the NSX-R.. this is designed to pull air out from behind the radiator..
a good location for these kinds of vents would be on fender, closer towards the back of the engine bay.. this way, no water would get in..
