Jcsportline Carbon Fiber Air Fenders Vents fits Mercedes Benz W204 C63 AMG Bumper 2008-2011 Material: Carbon Fiber, made by approved & certified materials manufacturers that meet market requirements and road use regulations. Fitment: for Mercedes Benz W204 C63 AMG Bumper 2008 2009 2010 2011. Package including: 2 pcs Side Air Fenders Vents. Thoroughly tested & produced under strict factory quality standards, to ensure it meets safety requirements. This item is sure to improve the look of your exterior. Please check the item and accessories in the package. Use alcohol to clean the place where to put the fender vents 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)