The new XDR Off-Road Competition single exhaust system for 2015-17 Polaris RZR XP1000 EPS 2/4 Dr Models 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 mandrel-bent inlet pipe flowing into an XDR Off-Road competition race muffler with a 2.50-inch mandrel-bent tailpipe exiting in the stock location. The tailpipe is designed to re-use the OEM USFS qualified spark arrestor allowing you to meet stock class race rules when necessary. The cheap factory plastic heatshield is replaced with a black powder-coated heatshield sporting a laser-cut XDR logo that not only looks good, provides better airflow and heat dissipation, but also makes the statement that your serious about performance. As a Competition XDR Off-Road system, it will generally provide a moderate to aggressive sound level. Note: This system does not include a catalytic converter and therefore is not emissions compliant for on-road or trail use. Competition use only.