Compliment your Polaris Ranger RZR XP 900 with Gibson Single Core Slip- on muffler. Get an extra increase of 4-5 rear wheel horsepower, 3-4 more foot lbs. of torque and 2-3mph. With Gibson non-packed mufflers you can guarantee a consistent level of sound and performance quality for the duration of your vehicles lifetime. Utilizing a compression spring fitting allows plenty of movement to handle all types of abuse eliminating the possibilities of breakage, finishing with a mirror bright polished T304 Stainless exhaust turndown tip. All necessary hardware is included for a complete hassle free bolt on installation. Tested with a decibel reading of 101db's per the SAEJ 1287 testing procedure. Lowest sound level on the market. Meets sound requirements. USFS Approved Spark Arrestor.