Another new and unique product from Scott Drake. Scott's goal was to provide the classic Mustang with sequential turn signals like the T-birds and Shelby's of the 60's. The inserts alone increase the brightness of the tailLights by 200%. Drake's sequential light systems come complete with control modules, an electronic variable flasher and 2 dedicated three bulb inserts, ready to install in your taillight housings. All required electrical connectors are provided. This is NOT a replacement for Shelby sequential taillights. Assembly required. Check out Drake's hood scoop mounted sequential lights too.