OS Giken SuperLock LSD, BMW Z3 M

OS Giken SuperLock LSD for BMW Z3 M – Precision Limited Slip Differential Upgrade Enhance the performance and drivability of your BMW Z3 M with the OS Giken SuperLock LSD—a track-proven limited slip differential engineered for smooth, predictable engagement and superior traction under load. This advanced LSD features OS Giken’s patented pressure ring system and spline-through-side-gear design, allowing up to twice the number of friction plates compared to standard differentials. That means quieter operation, stronger lock-up, and extended durability in both street and motorsport applications. Perfect for spirited driving, track use, or replacing a worn factory LSD, the OS Giken SuperLock delivers a full 100% progressive lock without compromising daily drivability. Key Features: Patented pressure ring design for progressive and responsive locking Spline-through-gear construction allows for increased friction plate count Low preload with 100% lock capability for ideal balance of comfort and performance All components chemically heat-treated for long-term strength Built from high-grade forged steel for unmatched durability Clutch discs precision-machined on both sides to reduce warpage and maintain consistency Billet-machined LSD case for structural uniformity and precise fitment US Model Technical Specifications: Ramp Angles: 25 / 38 Lock Timing: 336 Total Friction Plates: 20 Preload: 10S EURO Model Technical Specifications: Ramps - 25 / 35 Lock Timing - 336 Total Plates - 20 Preload - 10S Vehicle Fitment: BMW Z3 M Coupe BMW Z3 M Roadster Installation Notes: Refer to the OEM BMW service manual. Professional installation is recommended to ensure proper fit and performance.