This is my experience with a Gates carbon belt on my 2015 RZR 900S WL. I installed a gates carbon belt after reading a lot of good reviews about it. What i noticed right off the bat was a squeal from a dead stop, in low, high, and reverse. And the RZR felt "lazy." I noticed if i gassed it hard it felt like it would just rev up and speed up but didnt feel like it had any umph. Also noticed a strong burning smell and when i pulled my belt plug, it was full of dust. I put the stock belt back on and its back to feeling normal. Now when i gas it, it throws my head back in the seat. No more squealing or burn smell. Not bashing gates, just sharing my experience.