We have a 2013 900 XP 4 – 2500mi. During our last outing (muddy), it suddenly began making a sound almost like it has an exhaust leak. No power loss or any other symptom other than a loud noise when you let off the throttle. I’ve since cleaned it up and searched all over and cannot find the source. I’m not convinced it’s an exhaust leak because the sound only happens when you let off of the throttle. I did remove the muffler and check the seal between the header and muffler. It appeared OK.

I have a video of the sound, but I’ve no idea how to post that here.

Any ideas?

Thanks in advance.

Utah RZR Rentals