This cowl vent scoop was designed to increase the efficiency of your heater and air conditioner. Constructed of prime 304 stainless steel that has been polished to a mirror finish. 304 stainless steel is virtually rust proof guaranteeing that these parts will stand the test of time .Ram induction hood scoop is designed to provide maximum air flow to your passenger compartment. Installation is easy with double sided automotive grade tape. No drilling required. Mounts facing either direction.