- Optional Upgrade to Carrillo Connecting Rods (Rated for 1

S54 engines have an 87mm bore and a stock gasket thickness of 0

Each piston is meticulously designed using computer-aided design (CAD) and finite element analysis (FEA) to optimize strength

including the M3 E90

OS Giken SuperLock LSD, BMW E36 318is 330022 - Optional Upgrade to CarrilloThe 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