faster corner exits

Full FEA performed to eliminate stress points

torque stability

a high-strength alloy offering superior fatigue resistance and durability

Ideal for high-performance turbocharged N54 engines with increased cylinder pressures

OS Giken SuperLock LSD, BMW E28 S85 Valves faster corner exitsOS Giken SuperLock LSD for BMW E28 535i M535i M5 Limited Slip Differential Upgrade Upgrade your classic BMW E28 with the OS Giken SuperLock LSDengineered for enhanced traction, cornering stability, and smooth power delivery. Designed specifically for the E28 535i, M535i, and M5, this performance limited slip differential is ideal for street driving, track days, or spirited canyon runs. OS Gikens patented pressure ring system and spline through side