and better overall engine efficiency

ductile iron cylinder sleeves

resulting in greatly improved cooling efficiency for your engine

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

Rod Length: 139 mm

OS Giken SuperLock LSD, BMW E46 M3 EJ257 and better overall engine efficiencyThe 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