BMW N63 High-Performance Valve Spring Kit – Ferrea

Factory valve springs can struggle under high boost, aggressive cam profiles, and sustained high RPM. Ferrea valve springs are engineered with increased seat pressure and improved coil bind clearance to maintain precise valve control, reduce valve float, and support higher rev limits. Ideal for both high-performance street builds and dedicated race applications.

Kit Contents:

• (32) Chrome Silicon Performance Valve Springs

• (32) Precision-Fit Spring Seats

• (32) Titanium Spring Retainers

• (32) Viton Valve Stem Seals