1Rear trunk spoiler is perfect replacement for Kia K5 Optima 2020+, can perfect match for your car. 2It is an aerodynamic component that uses the airflow passing through the vehicle body while driving to apply downforce and improve stability at high speeds, thereby increasing the traction of the rear tires. 3Provide your vehicle with better aerodynamic performance, that is, reduce drag, improve fuel efficiency, increase downforce, traction and stability. 4The spoiler uses a mixture of glass fiber and ABS engineering plastics to provide a durable product. 5Get a track inspired look at a fraction of the cost, easy to install, equipped with doublesided tape.
