Yep. I use a Silent Benz ATV exhaust muffler on my Honda Foreman. They make them for the Polaris also. Just google: 'Silent Benz exhaust' and check out their website.
I can tell you that my ATV went from loud to where you can't hear it standing 40 feet away.
It's actually SO quiet that I hunt with it. You can hear the motor, but almost no noise is coming out of the tailpipe.
Silent Benz says it cuts the noise down by at least 60%. Everyone that I know that has one says it cuts it by at least 90%.
Easy to install, high quality, and not too expensive.
You will find yourself riding by deer and them not spooking from the noise.
It's pretty cool.