This new bolt-on XDR performance exhaust system is for the 2015-2017 Polaris RZR XP 1000 and XP 4 1000 with naturally aspirated engine. Features include 409S stainless steel construction with a 2.50 inch mandrel bent inlet tube flowing into the "straight-through" cross-flow performance muffler with dual 2.25 inch mandrel bent tailpipes tucked up high within the rear fenders providing a moderate to aggressive deep sound level. The tailpipes contain USFS qualified spark arrestors and are finished off with a pair of 3.50 inch dual wall brushed 304s stainless steel tips with black anodized aluminum ends. The factory exhaust cut-out is replaced with a stainless heat shield with the Flowmaster logo laser cut in the shield showing everyone behind you, why your RZR sounds so good. Includes all hardware and installation instructions necessary for a simple at home installation. For competition use only; Not EPA emissions compliant. Not available for sale or use in California. Made in the USA