IIRC one guy here has a electric atv or side by side, I'm not familiar with the Benz. They interest me as well after riding around perfectly silent in an electric golf cart.
Can't comment on that particular muffler, but if I had a gasoline engine UTV, I would be in the market for as much muffler as I could fit on it. When we were shopping, they were all LOUD! That's why I went with the Polaris Ranger EV. Nearly silent.