Enhance the side profile of your 2021+ BMW 4 series with these BMW G22 coupe and G23 convertible Carbon Fiber Side Skirt Extensions from RW. These side skirts are the perfect addition for you, if you are looking to complete your CF build and already have our front lip and diffuser. All of our carbon fiber at RW Carbon is backed by a quality and fitment guarantee to ensure that you receive the best quality on the market. These are made using real carbon fiber, none of that fake stuff from eBay. Installation is simple, just apply self-tapping screws into the underside of your side skirts, and some 3M tape on the top edge. All hardware will be included and installation takes about 1 hour. If you have more questions for us, please contact us today.