I have the Power Duals and Hi-Output slipons on my 2012 RGU. I love it. Power is good and sound is great. One thing to think about though is how far you dig going into right hand turns. The X-Pipe has been known to scrap on these.
The Fuel-Moto Jackpot does a better job of tucking the X-Pipe out of the way and is actually constructed of real pipe, not just stamped sheetmetal.
Don't get me wrong, I love my pipes, but I think I will get the Fuel-Moto Jackpots when I finally do replace these.