Trunk Spoiler Rear Diffuser Lip Bumper WITH LED Back Spoiler For BMW 1 Series F20 F21 2012-2014 2015-2019 Auto Exterior Accessories Diffuser Spoiler(With light 15-19)

Car spoilers, The trunk spoiler lip can enhance the stability at high speed, which greatly reduce wind resistance, save fuel and maintain safety. The tail spoiler is an aerodynamic part, increases the traction of the rear tires by applying downforce through the airflow of the body when driving. Rear Diffuser Lip Bumper WITH LED Back Spoiler For BMW 1 Series F20 F21 2012-2014 2015-2019 Auto Exterior Accessories. Increase grip,improve balance and fuel economy . Reduce the air drag during high-speed driving -Improve the stability when driving .