For Mazda CX-30 CX-5 CX-50 CX-9 Carbon Fiber Rear Bumper Lip Diffuser 6-Fins

★【Reduce Air Resistance】:This shark fin diffuser designed to increase a vehicle's aerodynamic performance.Reduces car's drag about 1.6% and increases down force.Reduce the airflow into the bottom, improve the steady of vehicle during fast driving.