I have a set of the Twin Slash Slip ons on my 2011 RKC. Although they look great, I was hoping for a tad more sound from them. Not unhappy with them by a longshot but would install a louder set next time.
They sure do look nice though...........That's my 2 cents.
I have the H.O. propipe and love it .Great sound and I can hear radio loud and clear at 80. The H.O.,rounds,and monster ovals all sound great,but get rid of factory headpipe.
I had True Duals with Bassani slip ons. Trust me, you dont want them. It was a terrible waste of money for me. Get the D&D Boarzilla. It is the only full exhaust worth the money.