Fits: 2017 thru 2024 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P & 2019-2024 4500HD/5500HD/6500HD L5D Duramax Diesel

Wehrli Custom Fabrication designed these as an upgrade to the smaller and failure prone 8mm OEM up pipe fasteners. 

Features:

• High strength ARP bolts, will not seize or break like factory fasteners
• Simple, cost effective upgrade for ease of serviceability
• Replaces OEM up pipe to turbo & up pipe to manifold hardware

Includes:

• (12) ARP high strength bolts
• (12) ARP washers
• Assembly lube

Notes:

• Torque to 24 ft/lbs.