11,000 RPM Valve Spring Kit BMW M50 M52 S50 S52 Valve Size:6 mm the 4A-G 16V is a

the 4A-G 16V is a favorite amongst engine builders and tuners for performance motorsport builds

Release Sleeve Assembly

Designed specifically for the BMW S50B30 EURO engine

No detail is spared

Our heavy-duty iron sleeves offer the reliability you need to maximize your engine's potential

11,000 RPM Valve Spring Kit BMW M50 M52 S50 S52 Valve Size:6 mm the 4A-G 16V is a5150 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