What is Spoiler a spoiler is an aerodynamic device attached to the rear of a vehicle to improve its stability and handling at high speeds. it is commonly used on other cars and can be made from a variety of materials, including carbon fiber and fiberglass Fitment for Benz for C180 2015-2016 2018-2019 for C200 2015-2016 2018 2020 for C250 2015-2016 2018 for C300 2015-2021 for C400 2015 for C43 2017-2021 for C450 2016 for C63 2015-2021 & S 2015-2021 Item Offered Packge contents: 1x trunk spoiler Material ABS Position Location: rear Part Number FZ-9-T-4666 Color Unpainted black Installation Instruction Not included Style Psm style Feature Easy installation Performance part Function of Spoiler the primary function of a spoiler is to reduce and improve the air current over the vehicle, increasing its stability and handling at high speeds. it works by creating downforce, which pushes the vehicle down onto the road and improves traction and grip.