JWR:
There are some aftermarket mufflers that just about silence the ATV’s. I use one on my Yamaha when I choose to take my ATV hunting. While it does not get rid of all the sounds, I would say that it quiets the ATV by about 80%. ATVSilencer.com [1] is one such vendor of many. This is the one I use and it wasn’t too bad for me (a computer guy) to install. The only other issue I have with the ATV bugout scenario is the effects of EMP on ATV’s. I am in the process of designing and fabricating a large faraday box enclosure for my ATV. There is so much to hear concerning what a EMP/Solar Flare will or wont do to modern cars and electronics, but I figure building an enclosure in my basement could only help keep my ATV running should either scenario play out. A.J.