Looking for an exhaust system that will give your Duramax a boost in performance? Check out the AFE 49-04041 Atlas 5 Inch DPF-Back Exhaust System. This system is designed to increase horsepower, torque and lower EGTs on your LML Duramax 2011-2016. It's made from durable aluminized steel and features a DPF-back design for maximum flow. So if you're looking for an easy way to improve your truck's performance, the AFE 49-04041 Atlas 5 Inch DPF-Back Exhaust System is the way to go.