OS Giken Porsche 996/997 Turbo 4WD C-Type Super Lock LSD

The OS Giken Super Lock LSD uses a patented pressure ring design for smooth, progressive locking. It features a spline-through-side-gear design allowing for more friction plates (up to twice as many as competitors' versions). The standard OS LSD specification allows for low preload while retaining a fully progressive 100% lock capability. It operates quietly with smooth, predictable locking, aiming to improve the driving experience while maintaining everyday drivability. All components are chemically heat-treated for maximum durability and constructed from high-grade steel alloy. The gears are raw-forged for maximum strength, and the clutch disks are precision-machined. The LSD case is machined from a single billet piece to ensure uniformity.