Interested in a new exhaust system for your LML Duramax? Check out the ATLAS dual DPF-Back exhaust system by aFe. This system is constructed from 4 in. mandrel bent aluminized steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations and comes with a bolt-on bracket that supports the driverside tailpipe. This provides for a quick hassle-free installation with no modification necessary. Also included in the exhaust system are dual massive 6 i n. polished 304 stainless steel slash cut tips with laser-cut stainless steel aFe power badges. The tips feature a drain port on the bottom to keep rust and corrosion away. ATLAS exhaust systems are the perfect combination of performance, fit and value. this exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust. This exhaust system fits perfectly without relocating the spare tire. OE-style fit that does not change with time. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs. All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility. ATLAS 4 IN Aluminized Steel DPF-Back Exhaust System w/Polished Tip GM Diesel Trucks 11-16 V8-6.6L (td) LML GM Diesel Trucks 11-16 V8-6.6L (td) LML