This ARP BMW 5.0L (S85) V10 12pt Custom Age 625+ Rod Bolt Kit is designed to provide superior strength and reliability for high performance engines. The kit includes 12-point bolts made from ARP's proprietary Custom Age 625+ material, which is an alloy steel that provides a higher tensile strength than standard grade 8 bolts. The bolts are heat-treated for added strength and feature a black oxide finish for corrosion resistance. The kit also includes ARP's Ultra-Torque fastener assembly lubricant for easy installation and long-term protection. This kit is perfect for BMW enthusiasts looking to upgrade their engine's performance and reliability.