I seriously considered that specific (or slightly less $$ side tip version) exhaust for my former MavT. IIRC at that time, fitment was listed as compatible with all MavT/MavS 800/1000/1000R engines. I suspect MBRP subsequently determined from customer feedback that mounting points (incl cat pipe slip-on connection) isn't same as 1000R, so changed their catalog listing accordingly. Back then, I bought the Can-Am by Yosh muffler (not a "system") which IMO was an obnoxious noise maker. Had that on just one day of 50 trail miles before removed. OTOH, my buddy Yattr with same MavS Xrc bought the MPRP and likes it. Yes, somewhat louder total dBA but lower more mellow less harsh pitch. Mine remains stock after that Yosh experience.