One 5/16" hole in each muffler gave my 13 chrome a nice little growl at idle and I can hear it at speed
but not much more. Just enough to tell an rpm rise or fall without looking at the dash.
Any drone?
"Extremism in the defense of liberty is no vice.
And... moderation in the pursuit of justice is no virtue.''
-- Barry Goldwater, Acceptance Speech at the Republican Convention; 1964