11-13 XP900 Aftermarket Muffler by RR | Nov 2, 2018 | Parts For Sale - Midwest / Texas | 0 comments 11-13 xp900 aftermarket muffler. EXP Performance. Located in Edmond, OK. I have video clip of what it sounds like I can text or email. $200 Attachment 563776Attachment 563778 Sent from my iPhone using RZRForums.net Attached Thumbnails Utah RZR Rentalswhence Submit a Comment Cancel replyYou must be logged in to post a comment.