BMW S58 ARP Head Stud Kit, G80 G81 G82 G83 G87

Upgrade the performance of your BMW S58B30T0 engine with our ARP Head Stud Kits. Specifically designed for the turbocharged inline 6-cylinder S58 engines found in high-performance models such as X3M F97, X4M F98, M3 G80, M4 G82, and M4 G83. As you increase the power output of your engine beyond its factory specifications, the head and block may start to separate, causing factory bolts to stretch and fail. Our ARP Head Studs are designed to be stronger than factory bolts, ensuring your race engine stays together even under extreme conditions. Our Custom Age 625+ kit is made from a material with a tensile strength of 260 ksi, substantially higher than the 190 ksi of the ARP 2000 head stud. It's an ideal choice for individuals who want to push the limits of their S58 builds. Our Oversized Kit option utilizes ARP's proprietary Custom Age 625+ material option combined with specialized insert washers for ultra-high boost applications. Please note that this kit requires that the cylinder hea