Looking for an upgrade over your stock exhaust system? Check out the AFE 49-04043 Atlas 4 Inch Dual DPF-Back Exhaust System. This system is designed specifically for the LML Duramax 2011-2016 and is made from 4" aluminized steel for durability. It features OE style bayonet hangers and comes with a polished exhaust tip for a finished look. Plus, it's designed to fit with your spare tire for added convenience. Give your ride the performance boost it deserves with this great exhaust system.