This Plug and Play Turn Signal Upgrade features a smoked lens and sequential functionality. The sequential functionality of the blinker light modernizes the look of the vehicle! Rather than a "blinking" light, this light travels from the inside edge of the mirror to the outside edge, and back. The plug and play design is an easy swap that plugs and fits right in as an OEM part would, and the smoked lens provides a stealthier look. This DIY upgrade will modernize your BMW while maintaining the OEM look and feel!