The T-4's sound great! They came on the bike from the dealer here in Nor Cal. They were right at $700 I'm afraid to price them because I think they over charged me. At idle you can hardley here them, but when you hit it they sound incredible much better then my DS with a white brothers pipe. This V has convinced me to sell the DS.

 

I found the Pro Circuit T4 pipe for $437.94 delivered.