BMW S58 Complete ARP Engine Hardware Package – All-In-One Strength for High-Power Builds Upgrade your entire bottom and top end with the BMW S58 Complete Engine Hardware Package by 5150 AutoSport, featuring 100% genuine ARP components. This all-inclusive kit is specifically designed for the BMW S58 engine found in models like the G80 M3, G82/G83 M4, X3M F97, and X4M F98. As your S58 build pushes past factory power limits, OEM torque-to-yield hardware becomes a liability. This package eliminates that risk by replacing critical engine fasteners with high-strength ARP2000 or Custom Age 625+ options—engineered for ultimate clamping force, stability, and durability under extreme boost, RPM, and heat. Whether you're building a 700hp street car or a 1000+hp track monster, this kit provides the fastener strength and reliability you need in one professionally curated package. Kit Includes: ARP Head Stud Kit – Choose from ARP2000 (190 ksi) or Custom Age 625+ (260 ksi) for maximum head sealing under high boost ARP Main Stud Kit – Improves block rigidity and crank alignment; prevents main cap walk and fastener stretch ARP Harmonic Damper Bolts – Prevents bolt walkout or failure seen in high-power S58 builds ARP Girdle Bolt Set – Reinforces lower block structure to prevent flex and maintain main cap alignment ARP Flexplate Bolts – Made from ARP2000 for secure, reusable fastening on the ZF 8HP76 transmission ARP Oil Sprocket Bolt – Secure high-RPM cam timing with superior fatigue resistance over factory bolts BMW S58 Applications: 2 Series 2023-Present G87 M2 3 Series 2021-Present G80 M3 4 Series 2021-Present G82/G83 M4 X3 Series 2019-Present F97 X3M X4 Series 2019-Present F98 X4M
