professional builders

LOGGING SPEED

50mm Exhaust   Rally / Race  301° Intake / 293° Exhaust   12

and 11121405106 and is specifically designed for M50

broader torque delivery

BMW M40 / M42 / M43 / M44 Valves by Ferrea Options:Triple Groove - 34mm Intake / 31.5mm Exhaust professional buildersThe Ferrea Competition Plus Valves are highly regarded as one of the most reliable extreme duty valve kits in the industry. Specifically designed for the classic BMW M40, M42, M43, and M44 engines, these valves are crafted with performance in mind, using aerospace grade alloys such as EV8 Z18 for maximum tensile strength. Ferreas unique two step slow forging process ensures superior grain flow, enhancing the structural integrity of each valve. A 48