These layers consist of both proprietary

Designed for BMW

these springs are ready to withstand the toughest demands

75"Bolt Circle Diameter: 4

21000: We employed this kit in our TwinTurbo Angry Bull E36 M3 to help turbos spooling at lower RPMs

OS Giken SuperLock LSD, BMW E30 M3 Sensor These layers consist of bothThe OS Giken SuperLock LSD features their patented pressure ring design, delivering smooth, progressive locking. Distinguished by a spline through side gear construction, OS Giken's design allows for the fitment of more friction plates (up to 2x as many as competing versions). Key Features: All components undergo chemical heat treatment for maximum durability Constructed from a high grade steel alloy, ensuring exceptional strength Gears are raw forged