Introducing the new FlowFX® Cat-back exhaust system for the 2017-2024 Nissan Titan with the 5.6L engine. This performance exhaust system bolts up to the factory cat pipes with large dual 2.5-inch mandrel-bent tubing flowing into a Scavenger Series® Y-pipe for maximum flow. Our exclusive Scavenger Y-pipe creates a stronger signal than conventional y-pipes, by using two D-shaped ports back to back, giving a larger surface area than just two round pipes joined together. This creates a much stronger scavenging affect to help evacuate the cylinders during the exhaust stroke netting more power and torque. This is especially important for towing. The system flows out of the Scavenger series collector into 3-inch stainless steel tubing and the "straight-through" FlowFX muffler, which has a very deep powerful sound outside the vehicle, with moderate tone inside the cab. The mandrel-bent tailpipe exits behind the passenger side rear tire and is finished off with a large 4.50-inch black ceramic coated exhaust tip embossed with the Flowmaster® name. The system utilizes the factory hanger locations and connections and includes all necessary parts, hardware and detailed instructions for an easy at home installation. Notes: Fits 2/4 Wheel drive and all wheelbases. Does Not fit XD models.