Fits: 2001 thru 2016 Chevrolet Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM/LML Duramax Diesel *See Fitment Notes Below* When upgrading your manifolds and up pipes with either the PPE High Flow manifolds and up pipes or the Max-Flow Race series manifolds and up-pipes it is highly recommended to add a support bracket to secure the downpipe in place since these kits eliminate the factory bracket. Max-flow has fabricated this downpipe support bracket from heavy duty 3/16" 304 stainless steel to provide strength and support for years to come. If the downpipe is not secured with a bracket it can contact the up-pipes and cause damage to the exhaust. Features: 3/16" 304 Stainless Steel Construction. Grade 10.9 Hardware. Works with Max-Flow Race Series & PPE High Flow Manifolds & up pipes. Made in the USA Fitment Notes: This bracket is recommended when using Max-Flow Race Series Manifold/Up-pipe kit or the PPE High Flow Up-Pipes and Manifolds. This will NOT work on Stock Up-Pipes and Manifolds or the Max-Flow "Performance Series" Manifold and Up Pipe Kit.