Factory valve guides are replaced with high-performance guides

The ARP Custom Age 625+ BMW S63 Head Stud Kit is made from a material with a tensile strength of 260 ksi

the team at Mishimoto felt a need to develop a performance aluminum radiator that would not only provide improved durability

and valve float are common issues that can lead to severe engine damage

specifically for the N55B30 and S55B30 turbocharged inline-six engines

BMW S50B30 EURO Valve Springs by SuperTech Seat Pressure:105 lbs Factory valve guides are replacedDesigned specifically for the BMW S50B30 EURO engine, Supertech high performance valve springs offer unmatched reliability and efficiency for racing and performance applications. Crafted from a premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs provide enhanced performance and longevity, especially at high RPMs. This advanced material choice not only ensures remarkable strength but also improves structural memory, allowing for