As a critical component to complete an aerodynamics package, the rear diffuser helps channel air flow out from under the vehicle.  The purpose is to keep the air flow from building high pressure under the vehicle, which will cause lift.  By applying the Cusco rear diffuser, it guides the air out, toward the rear of the vehicle and keep the air from rising up into the open areas under the chassis.

These are designed to bolt onto factory locations and made from high impact injection molded plastic.