the scoops feed air into the engine bay in the opposite direction to what the air flows through the engine bay so its pretty useless and a waste of time apart from asthetics..
the air enters the engine bay front under the car then rises through the engine bay and out the engine lid vents
the scoops try to force the air the exact opposite way..
if you want more air into your intake buy somethign like the border side intake scoop that sits on the actual intake vent.