Originally I had not considered making a sway bar for the RS, RSS, ST, STS or ST Ltd., Spyders because the stiffer RSS bar was being made available by BRP for all these models. But I began to get calls and emails from RSS owners and a few ST owners who had installed the upgrade RSS bar and they were not impressed.
I looked into it and decided that I could improve on that bar. I purposefully had RSS bar riders test my Prototype and they were quite impressed with the improvement. Maybe one of them will chime in but I feel confident that you will notice a big improvement over the RSS bar and certainly over the stock bar that comes on any of the other models.
The Fox Shocks are (IMHO) worth consideration by any RS, ST, STS or ST Ltd. owner. I hear Pit Bull Powersports is also working with Elka for a 2013 version. Not sure where they are on that project.