Specifically designed for BMW M40

S model versions of the inline 6-cylinder engines found in E34/E36 chassis

After the initial tightening

Please Note: CA 625+ Head Studs are currently out of stock

BMW B48 Valve Spring Kit by Ferrea 11121736318 Specifically designed for BMW M40When it comes to enhancing engine performance in BMW, Toyota, and Mini B48 engines, Ferrea valve springs stand out as one of the best industry offerings. Designed to address three critical issues that can jeopardize engine efficiencybinding, breakage, and valve floatthese springs are engineered for serious enthusiasts and racers. Combatting Binding, Breakage, and Valve Float Binding can lead to valves that fail to open or close properly, risking