aFe ATLAS 4 IN Aluminized Steel Down-Pipe Back Exhaust System GM Diesel Trucks 01-10 V8-6.6L (td) LB7/LLY/LBZ/LMM - 49-04059NM

The new ATLAS exhaust race pipe is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" aluminized steel tubing for maximum flow, increased horsepower, increased torque and lower EGTs. To provide a leak-free seal, OE style band clamps and flanges are used that offer a 360-degree sealing area. ATLAS exhaust race pipes are the perfect combination of performance, fit and value.