and throttle response

Before installing ARP head studs

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

Specifically designed for BMW M40

BMW M20B27 Applications:

BMW B48 Valve Spring Kit by Ferrea 11121736318 and throttle responseWhen 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