You don't even what?
"Internal Combustion cars don't stall because their exhaust floods. They stall because they suck up water into their intake. There is no such thing as an "exhaust scoop""
The air intake snorkel on many 4v4's a lot of time is really there just for cosmetics (as the air intake system is fairly capable on it's own) or often has a compressor in it to cool the intake air to allow the engine to work in more extreme thermal conditions.