GMC Sierra LED Tail Lights: While every biz in the aftermarket has a catalog full of products for these trucks, somehow no brand has yet to deliver a worthy set of tail lights for this body style... until now. The Morimoto XB LED tail lights are the category killer that every 14-18 Sierra owner has been waiting for! Reverse Lights: Are often over-looked, but not with the Morimoto XB tail lights for the Sierra. While they come standard with powerful LED reverse lights, just wait, theres more! Morimotos Backup-Boost system allows you to plug n play with the optional LED Reverse Light Bar, which mounts to the top of your license plate frame and provides an extra 2,700 lumens of controlled light output when in backing up. Yeah, Morimoto customers like to see where they're going... no matter the direction! Style: Dropping in some rear-facing LED Chips would have been much easier and far less expensive to produce... and while thats what every other brand to date has done, thats not how we roll. Instead, these have a much more modern look found on the latest generation Sierra trucks. Two horizontal rows of TIR-Optics illuminate the 3D light blades that float across the front of the lenses. These serve as the brake light and turn signal, and they're extremely bright--easily visible both day and night. Pair that with the surrounding muscular trim, optional smoked or red outer lens, and we've easily got what is the best-looking set tail lights on the road for the Sierra. Style and Safety: All Morimoto tail lights are designed to comply with all DOT, SAE regulations for rear-facing lamps. We pride ourselves on offering stylish, high-performance and safe products for serious enthusiasts, which is why all new Morimoto products are verified by trusted third party labs for compliance and are backed with an industry-leading five year warranty.