The Nismo GT LSD for the 2003-2006 Nissan 350z is a 1.5 way (upgradeable to 2 way) limited slip differential designed to provide maximum traction that is most often lost in hard off-the-line acceleration. The unit will sense when one wheel starts losing traction due to track/road conditions, hard cornering, and/or torque steer. Once it detects the slippage, it will compensate by shuffling the power from side to side to overcome the loss of traction. This translates into better track or quarter mile times, and more efficient use of the engines power. On the Nissan 350z the rear LSD is adjustable in 60%, 80%, and 100% lockup mode. This LSD is VCD compatible (although you will have to turn VCD off to enjoy the full benefits). The Nismo GT LSD is a full install kit, including everything shown, and is perfect for the base model 350z adding an LSD.