Subaru FA20 and 4U-GSE - 86 mm Stroke

BMW X3 Series

significantly reducing friction and enhancing engine efficiency

Avoid additional sealant

The STRAIGHT version for use only with the OBD2 OEM fuel rail on the M50 Intake Manifold

OS Giken SuperLock LSD, BMW E36 M3 4 Subaru FA20 and 4U-GSE -The 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