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Regardless of whether you’re looking for reliable and clean power gains in your Polaris RS1 or you just don’t want your rig to sound like a Toro lawn mower, an aftermarket exhaust is the way to go. Some exhaust systems -- like the so-called “cat-back” exhaust systems like those by MBRP -- don’t require any tuning; just bolt em’ on and you’re good to go. Others, however, require an ECU reflash or programming kit to run properly. This is because of changes and alterations to the various sensors and meters in the exhaust that the ECU uses to monitor and control the exhaust system and how it interacts with other systems and components. For example, when properly tuned the Trinity Stage 5 exhaust can provide up to 10% power gains according to the manufacturer. More than just power, aftermarket RS1 exhausts can also bring more low end torque and better throttle response. In some cases, however, they can also decrease your machine’s fuel efficiency. But if you want that nice beefy sound that’s loud, but not too loud, the MPG losses are well worth it!
Like Trinity, companies like EVO, HMF, Muzzy, and Bikeman provide easy-to-install RS1 exhaust systems that emit a nice throaty sound that isn’t overly annoying or obnoxious. If you’re installing the exhaust yourself, for as bad as it looks, it’s not that hard once you get into it. There’s roughly a dozen bolts or so a corner, nothing to complicated at all. The hardest part will likely be the header bolts. It’s a tight fit but if you use a short Allen key and slip a small extension over it for leverage to break them loose, they aren’t too terrible. When you’re reinstalling the header bolts, it’s not a bad idea to put a little anti seize on them. And if you’re not looking to swap out you’re entire exhaust, slip-on exhausts are a great option, and we also have replacement header pipes. Alternatively, another option is to gut the catalytic converter in the stock muffler to help it run cooler and flow a little better. But depending on where you ride, this might go against your local emissions regulations.