except that the stock muffler does not allow you to see the donut gasket angle when installed

These vents help increase belt life

Take Control of Your Shift: Peak RPM & Maximized Power

and o-rings

Fitment: Fits Polaris 9R RMK Models ONLY

Dayco Belt / Wildcat xtx2272 Category_Default Category/SLED/Racing/Ski-Doo/Ski-Doo MXZx 600RS except that the stock mufflerDayco XTX ATV and UTV belts are engineered for machines powered by 800cc and above engines. Engineered with specially formulated, high temperature polychloroprene with the highest level of aramid fiber reinforcement available, the Dayco XTX belt delivers track churning performance for the most aggressive riders. This innovative break through design features deeper cogs on top and rounded cogs on the bottom for ultimate flexibility and longer belt life