When I had my vis evo hood. I bought it used and didn't have the rain guards that originally came with it. When I would wash my car, I would pop the hood and throw a towel over the engine and mani (whatever would get wet) and was the car, but lightly spray around the vents to get the least water in the engine compartment. When driving and it started to rain, I couldn't do nothing, just see the steam rising from the cold rain drops hitting my motor and exhaust mani.
I got rid of it cause the paint didn't match my car 100 % and it rusted all my mani bolts and numerous other things.