This new Flowmaster no resonator kit is for 2015-2017 Ford Mustang GT coupe and convertibles with the 5.0L engine, and is a great way to increase the sound level of your car while making maximum power. These Scavenger Series X-pipe assemblies can be used with the factory rear muffler sections, or with one of our Flowmaster, or Hurst Elite Series axle-back systems. The kit is constructed from 2.50-inch mandrel-bent stainless steel tubing with all hardware included, and is covered by our Lifetime Limited Warranty.