A vehicle air intake system includes a grille disposed along a forward end of a vehicle. The grille has one or more inlet apertures for admitting airflow. A bulkhead extends laterally across the vehicle rearwardly of the grille. An intake enclosure having an intake port is disposed over the bulkhead. A bulkhead cover extends from the bulkhead to the grille. The bulkhead cover has louvers defining airflow passages therebetween for allowing the airflow admitted by the grille to pass to the intake port while inhibiting the passage of particles entrained in the airflow.