2014-17 BMW F23 228i / 228ix

S14B27 engines found in the E30 M3

NOTE: Lift pump mounting information for the older FCST (20-014X-XX

broader torque delivery

making them ideal for applications like forced induction and racing

11,000 RPM Valve Spring Kit BMW M50 M52 S50 S52 EJ18 2014-17 BMW F23 228i /5150 AutoSport Pro Xtreme Valve Springs Kit BMW M50 M52 S50 S52 Engines Maximize your engines potential with 5150 AutoSport Pro Xtreme Valve Springs, designed for BMW M50, M52, S50, and S52 engines. Whether you're building for high revving street performance or all out racing, these valve springs are built to handle engine speeds of up to 11,000 RPM with confidence. Available in two kit optionsone for 6mm valves and one for 7mm valvesyou get the