The MagnaFlow Pro Series Filter-Back Performance Exhaust System 17873 utilizes its weight-optimized, durable, corrosion resistant stainless steel design to enhance your 6.4L, 6.7L 2008-2023 Ford with MagnaFlow's signature sound and dyno-tested performance. 17873's 4in. diameter mandrel bent main piping features a muffler delete and terminates in a Dual Same Side Behind Passenger Rear Tire exit with 5in. Polished Welded-On Single Wall Angle Cut Rolled Edge tips. This emissions-legal filter-back exhaust kit has been tuned to create Mild interior and Moderate exterior sound levels. Exhaust system 17873 is emissions-legal and produced using CNC precision robotic manufacturing techniques that result in a direct-fit design that you can install yourself, all backed by MagnaFlow's limited lifetime warranty.