The new Flowmaster Resonator-Delete 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 resonator delete pipe is constructed from 2.50 in. mandrel-bent stainless steel tubing, necessary hardware and is covered by our Lifetime Limited Warranty.