In combustion engines, the exhaust system is very important to the performance life of your Polaris Ranger. When you start up your Polaris Ranger and take a ride, your engine creates toxic, hot waste gasses. If these gasses were to remain in the engine, your engine could sustain serious damage and affect performance. Get the Polaris RZR Slip-On Exhaust System by HMF. This exhaust is designed with a 2β open core, allowing evenly increased power through the RPM range. With its deep, loud sound, youβll stand out and impress your UTV buddies! With this exhaust system, youβll upgrade your performance and a big sound. Fueling tuning is required when installing this exhaust system. Failure to do so can void your warranty. With the Polaris RZR Slip-On Exhaust, you can add a whopping 3 horsepower to your machine and general, overall improvement in performance. As an added bonus, the Polaris RZR Slip-On Exhaust System is much lighter than your stock exhaust.