- Custom Designed Anodized 6061 Aluminum End Mounts

This intake manifold isn’t just another upgrade—it’s a high-quality

ductile iron cylinder sleeves

whether for street performance or racing

Rod Length: 139 mm

OS Giken SuperLock LSD, BMW E46 M3 EJ257 - Custom Designed Anodized 6061The 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