Introducing the Morimoto XB LED Tail Lights for your GMC Sierra, the ultimate upgrade you've been waiting for! These tail lights are a game-changer, featuring a sleek and modern design with horizontal rows of TIR-Optics that illuminate 3D light blades, serving as both brake lights and turn signals. Not only do they look stunning day and night, but they also come with powerful LED reverse lights as standard. But here's the kicker: Morimoto goes the extra mile for your safety and convenience. The Morimoto Backup-Boost system lets you easily add an optional LED Reverse Light Bar, providing an additional 2,700 lumens of controlled light output for confident reversing. These tail lights are not only about style but also safety. They comply with all DOT and SAE regulations for rear-facing lamps, giving you peace of mind on the road. Plus, they come with an industry-leading five-year warranty, showcasing our commitment to quality. Upgrade your Sierra with Morimoto XB LED Tail Lights today and experience the best in style, performance, and safety.