Upgrade your engine's performance and reliability with the Mishimoto manifold stud kit for your Cummins. These bolts are designed to increase the clamping force between the manifold and cylinder head, effectively minimizing the risk of boost-killing leaks and reducing the likelihood of manifold warpage. Anyone who has attempted to grapple a heavy manifold and turbocharger with one hand while attempting to line up a bolt hole with the other will appreciate the ease and convenience this stud kit provides. With 12-point hardware engineered to prevent nut rounding, gone are fears of stripped or rounded hardware. Plus, backed by a Lifetime Warranty, these manifold bolts offer peace of mind and assurance for the long haul.