Wehrli 100199 Up Pipe Bolt Kit | 2017-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features: - Includes 12 washers and bolts for up-pipes - Comes with ARP lubricant Secure Fitment of Up-Pipes with the WCFab The WCFab L5P Up Pipe Bolt Kit is an affordable and straightforward upgrade for the 2017-2025 6.6L Duramax that helps improve performance, reliability and ease of serviceability on your truck! Made of specially selected high strength ARP fasteners and matched washers, these bolts help prevent failure of the smaller and failure prone 8mm OEM fasteners employed on the 2017 and newer 6.6L Duramax engines that connect the up pipes to the exhaust manifolds and turbocharger pedestal. In short, having some of these high quality fasteners will ensure proper up-pipe maintenance and ensures longevity. Fits: 2017-2025 Chevrolet Silverado/GMC Sierra 6.6L Duramax