flowing an average of 14% better to each cylinder

the shafts can twist to at least 90 degrees

Twice as efficient as factory pump

some low rpm torque loss)

BMW B46 Valve Spring Kit by Ferrea Legacy GT flowing an average of 14%When building a high performance BMW B46 engine, upgrading the valvetrain is criticaland Ferrea valve springs are among the most trusted components in the industry. Engineered to prevent binding, breakage, and valve float, this spring kit is designed for enthusiasts pushing their B46 on the street or track. Built to Handle High RPM and Boosted Applications Valve spring binding, breakage, and float can cause major problems at high RPM or under boost.