The new XDR Competition single exhaust system utilizes full 304S stainless steel construction, bolts up to the factory flange and is firmly held in place using the factory mounts and springs. Features include a large 2.50-inch inlet flange that mates up perfectly to the factory flange and is secured by re-using the factory exhaust springs. The high-flow compact round XDR competition race muffler exits through a large 2.50-inch mandrel-bent tailpipe. Because of the increased tailpipe size, a new larger spark arrestor is included with the tailpipe, allowing you to meet stock class race rules when necessary. The cheap plastic factory heatshield is replaced with a black powder-coated 304S stainless heatshield sporting a laser-cut XDR logo and improved venting design that not only looks good, provides better airflow and heat dissipation, but also makes the statement that you're serious about performance. As a Competition XDR system on the XX, it provides a fairly aggressive sound level. Includes easy to follow installation instructions and all necessary hardware for a quick and simple at home installation. Note: This system does not include a catalytic converter and therefore is not emissions compliant for on-road or trail use. For Competition use only.