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

offering a fully configurable interface with various layout options

specifically for the N55B30 and S55B30 turbocharged inline-six engines

• Stainless steel turbine housings available with V-Band and T4 twin scroll inlet

This radiator also includes a Mishimoto Magnetic Drain Plug with dowty seal

BMW S50B30 EURO Valve Springs by SuperTech Seat Pressure:105 lbs The ARP Custom Age 625+Designed 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