Best Slip On Exhaust for XP4 1000 by RR | Dec 18, 2017 | General RZR Discussion | 0 comments Thinking about getting a slip on exhaust. I don’t want it to be loud. Whats everyone running and how do you like it. Any performance gains? Sound good? Sent from my iPhone using Tapatalk Utah RZR Rentalswhence Submit a Comment Cancel replyYou must be logged in to post a comment.