This Exhaust Kit is the perfect addition to your Polaris! This exhaust adds 3-5 more lbs of torque and 2-3mph. This Gibson Exhaust Kit is a direct fit replacement and includes all hardware for a hassle free bolt on installation on your 2016-2017 Polaris RZR XP1000 Turbo. It has 2.25" diameter piping. The part number is 98028.