jcsportline Carbon Fiber Rear Boot Trunk Lid Spoiler Wing fits Audi A3 S3 RS3 Sedan 2013-2018 Material:Carbon fiber,Made by approved & certified manufacturers with materials that meet market requirements and road use regulations. Fitment:This Rear Trunk Spoiler fits for Audi A3 S3 RS3 8V Sedan 4-door 2013 2014 2015 2016 2017 2018. Installation:This Rear Trunk Spoiler installed with self-adhesive tape. Shipping:Generally takes 5-10 business days shipped by EMS. Please keep patient and allow 1 extra day if the order is placed during the weekend. This Rear Trunk Spoiler with glossy look and stylish design, it will works fine and enhance overall performance in handling and durability. Please check the item and accessories in the package. Use alcohol to clean the place where to put the spoiler on.Confirm the installation path for self-adhesive tape. Use adhesion promotor on the path ready for self-adhesive tape. Open a little tape on the two ends.After you confirm the right installation path,remove the whole self-adhesive tape. Then,press to get a good fitment.(If you can use hair drier suitably when pressing, it will fit better)