I own a '10 ultra classic and put a set of Vance and Hines Twin Slash Round (4") slip ons on it. I like the sound, but sometimes it sometimes makes my ears ring. Vance and Hines advertizes "Quiet sound inserts" that can be installed to drop the sound 3-5 decibels. Has anyone tried these?

 

Older thread but did you ever try the inserts? Been thinkingthe same thing. Guess I getting old if it is too loud. Long rides are when it gets to me at times.

 

I added these to my pipes and it is alot more tolarable on long trips. It is fairly quite while cruising but it still gets loud if you get on it.
http://www.smartpartz.com/