aFe Large Bore-HD 4 IN 409 Stainless Steel Down-Pipe Back Exhaust System w/Muffler/Polished Tip Ford Diesel Trucks 08-10 V8-6.4L (td) - 49-43022

The new Large Bore-HD exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" 409 stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's. This system is available in 4" flange-back with muffler, muffler delete pipe and a polished tip. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.