Awesome its outta my cart, I really liked it because of the option to change sound levels for when I hunt. I want some power increase, I REALLY wish there were an option for dual exhaust..
I only added the HMF to fit a rear winch. I would’ve left the stock exhaust on it was quiet. There was a test done on the Ranger, Wolverine, Teryx, and the Pioneer. The Pioneer was the quietest by a significant margin (7-10db) up to 30mph, after that it was still quieter but only by 2-3db.
FYI: The decibel scale is logarithmic, like the Richter scale for earthquakes meaning that for every 10db there is a 10x increase in sound pressure and for every 20db increase there would be a 100x increase in SPL, so the Pioneer at 70db is 10 times quieter than its competitors at 80db.