That final piece you have been looking for to complete the exterior look of your 6 series or M6 are these carbon fiber side skirt extensions. We have these 3d style side skirt extensions available for your gran coupe, coupe, and convertible applications. We craft these extensions from genuine 2×2 carbon fiber and finish them off with a thick clear coat which makes them very durable and resistant to fading and yellowing. Installation is bolt on, requiring no special modifications to your 640i, 650i, or M6. If your F06, F12, or F13 already has an RW carbon fiber front lip, diffuser, and spoiler on it then you need these carbon fiber side skirt extensions to complete the look.