This center differential set is a performance-enhancing option part specifically designed for the Kyosho Lazer ZX6.6 1/10 scale 4WD competition buggy. It replaces the standard fixed gear or slipper clutch system, enabling racers to precisely tune power distribution between the front and rear axles by utilizing various silicone differential oils. Constructed with durable composite housings, precision-machined steel internal gears, and robust outdrives, this essential upgrade significantly improves the buggy's handling characteristics by reducing drivetrain bind, optimizing traction on diverse surfaces, and facilitating smoother, faster cornering exits.