New member here. Just bought a brand new 2022 king quad 750. Already got a snorkel kit and radiator relocate on the way. Now something I'm not so familiar with is the exhaust and what the best setup is to keep it running and idling under water. The stock muffler seems like it has a pretty small opening, which I believe would theoretically make it easier to keep the water out, but I know the stock muffler also has a spark arrestor and maybe some other stuff in there that could inhibit the outward pressure? The muffler Im looking at possibly replacing it with is the HMF performance series. It looks like it has a much larger opening but also less stuff inside the muffler. I have found a lot of mixed info on which one is going to be better at pushing water out. Any input on this would be much appreciated

 

We have the information you seek on the ATV Connection homepage, here:

https://atvconnection.com/articles/a...or-underwater/