aFe LARGE BORE HD exhaust systems are constructed from mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower and torque, while decreasing EGT. The 2-piece design and bayonet style hangers provide stability and for an easy installation. Finishing off the exhaust is a black, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style. Large Bore-HD 5 IN DPF-Back Stainless Steel Exhaust System w/Black Tip Nissan Titan XD 16-19 V8-5.0L (td) Nissan Titan XD 16-19 V8-5.0L (td)