Have not heard those pipes. I added V&H Basic slip-ons to my 09 RG. Deep sounding and IMO pretty loud (my wife loved the sound). You can actually feel the exhaust pulses when you stand next to them. I added Big City Thunder QQ headpipe baffles to quiet it down a little and to give back my low end tq that was lost with the 2 1/4" baffle of the V&H pipes.