Interested in a new exhaust system? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5 in. mandrel-bent aluminized steel tubing. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs. Uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. ATLAS exhaust systems are the perfect combination of performance, fit and value. All aFe exhaust systems are engineered and manufactured in out Corona, California manufacturing facility. ATLAS 4 IN Aluminized Steel DPF-Back Exhaust System w/Polished Tip Ford Diesel Trucks 11-14 V8-6.7L (td) Ford Diesel Trucks 11-14 V8-6.7L (td)