Diff Breather Routing - Pressure Issues?

[MudRunnerTD]

the Engine bay should be fine mate, the suction effect during a water crossing will occur as it cools rapidly, this will be over fast and then it should not really be an issue. THe idea also is that if you do the river crossing with a crossing bra then the bow wave in front will keep the engine bay relatively dry and your breathers up out of the way.

Rear fire wall up the top should be fine.