Wehrli 01-16 Chevrolet 6.6L LB7/LLY/LBZ/LMM/LML Duramax Up Pipe Bolt Kit

When you're working on the exhaust system of your 2001-2016 Duramax-powered Chevrolet or GMC truck, you'll find that the factory fasteners can sometimes seize or break. This kit from Wehrli Custom Fabrication gives you a set of six high-strength ARP 12-point fasteners, along with matching washers and a pack of assembly lube. It's designed to replace those aging OEM bolts that connect the up pipes to the exhaust manifolds and turbocharger pedestal, or the down pipe to the turbo outlet on LB7 models.

Using these ARP fasteners is a smart, cost-effective way to ensure peace of mind during installation and serviceability down the road, whether your truck is stock or has been modified. The kit includes enough hardware for one up pipe, so you'll need to purchase two sets if you're replacing both up pipes. The manufacturer recommends torquing these bolts to 54 ft lbs.