An improvement in an air filter compartment of an internal combustion engine within a vehicle includes an air filter compartment having a forward end having an air inlet connected to the vehicle to receive air through a front grill of the vehicle and a rear end with an air outlet leading to an engine intake of the vehicle. The air filter compartment has an intermediate portion configured to removably retain an air filter adjacent the forward end and a high output fan rearwardly of the air filter. The fan operably connects to a power supply of the vehicle.