DogBone Up-Pipe Bolts for 17-25 L5P Duramax

DogBone L5P Duramax Up-Pipe Bolt Kit (2017–2025)

The DogBone Bolt Kit for 2017–2025 L5P Duramax Up-Pipes includes high-strength 12-point fasteners, matched washers, and assembly lube. Designed as a direct upgrade to aging OEM hardware, this kit ensures a reliable, long-lasting seal between the up-pipes, exhaust manifolds, and turbocharger pedestal.

A simple, cost-effective upgrade that provides peace of mind and easier serviceability for both stock and modified trucks.

Purchase two sets when installing a pair of up-pipes.

Torque to 24 FT-LBS