BMW G80 M3 / G20 M340i GTX Style Carbon Fiber Trunk SpoilerBMW G80 M3 G20 M340i GTX Style Carbon Fiber Trunk Spoiler by Luminous Carbon Give your BMW sedan an unmistakable rear end upgrade with the GTX Style Carbon Fiber Trunk Spoiler from Luminous Carbon. Designed to fit the aggressive lines of the G80 M3 and G20 M340i, this spoiler takes styling cues from high performance track builds while maintaining a refined OEM+ appearance. Sculpted with a bold, raised edge and extended profile, the GTX style design