ARP/5150 Harmonic Damper Bolt Set, S58 B58 X58

DescriptionBMW and Toyota OEM damper bolts are grade 10 and Torque to Yield, designed for one-time use. While this is adequate for factory power levels, these bolts fall short when power levels are increased. ARP  has observed damper bolts coming loose and breaking, leading to engine and crank damage, as well as improper torque load between bolts. The factory bolts are simply not sufficient for those planning to run above factory power levels. ARP proudly offers a solution with the ARP Harmonic Damper Bolt Set for S58/B58  Engines. These bolts are made in the USA to ARP’s exacting standards, ensuring each bolt provides even, repeatable torque load as designed. ARP Hardware is known industry-wide for their quality and performance, making these bolts a reliable choice for enhanced power applications. Set of (4) Harmonic Damper BoltsTools required: 3/8″ 12 point socket and torque wrench.Tighten the balancer bolts to 80 ft/lbs using ARP assembly lubricantWarranty: RK Autowerks Warranty & Legal