the natural air flow of the aw11 is from under the engine bay and out the top, it is sucked up by a pressure drop created behind the rear window....
if you dont have to travel on some dirt roads (like me.. )
a under body scoop infront of the engine bay will collect more air to force up though the engine bay, it will also get more air up through the i/c....
putting your filter where corvid has is a good position, as long as it's not getting too much heat from the gearbox...