BMW F80 M3 | F82/F83 M4 GTS-V Carbon Fiber Side Blades by VorsteinerEnhance the profile of your BMW F80 M3 or F82 F83 M4 with the GTS V Carbon Fiber Side Blades by Vorsteiner. Designed to visually lower the stance and improve side airflow, these sculpted extensions add aggressive definition to the rocker panelsbringing a refined, track inspired look to the factory body lines. Crafted from autoclave cured pre preg carbon fiber, the GTS V Side Blades combine lightweight construction, aerodynamic intent, and a high gloss