Increased horsepower

000 lb/hr with a pressure drop of less than

2015-2018 BMW F80 M3

but a catastrophic failure

bigger turbos

BMW N52 Valve Spring Kit by Ferrea O-Rings Increased horsepowerFor BMW N52 owners seeking high performance valve springs, Ferrea offers an expertly engineered solution designed to eliminate common issues like binding, breakage, and valve floatcritical factors that can compromise engine performance. Ferrea valve springs are specifically crafted for high lift and high RPM applications, providing enhanced stability and reducing load loss. Ferrea springs undergo meticulous heat treatment and stress relief to ensure