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and M54B30 135mm Rod engines
or Toyota's B48 engine with CP-Carrillo forged pistons for high-performance
more torque and more power
professional install recommended
provide increased spring pressure at higher engine speeds
BMW M40/M42/M43/M44 Valves by SuperTech Valve Locks:Valves Only and M54B30 135mm Rod enginesSuperTech High Performance Valves for BMW M40, M42, M43, M44 Engines 6mm Valve Kit Upgrade your BMW M40, M42, M43, or M44 engine with SuperTech's High Performance Valves, designed specifically for these iconic I4 engines. Whether you're building a track monster or enhancing your daily driver's performance, these 6mm valves are the perfect solution for those seeking increased power, reliability, and efficiency. Engineered to handle the demands of high
