In-house carbon fiber design now available for your F82 or F83 sideskirts. RW Signature M4 carbon fiber side skirt extensions were designed to bring an aggressive side profile to your vehicle. We produce each set from 2x2 CF that is perfectly crafted to match OEM or other RW Carbon parts. Installation for the F82/F83 side skirts is simple - only using self tapping screws, which we include for you. Complete the carbon fiber theme on your M4 with a set of these RWS carbon fiber side skirt extensions.