i have an 08 xstar with L18 and dual in-line mufflers. it is still loud as the devil. i hate it. i have to crank the stereo up so loud that it is unpleasant. there seems to be no real solution for the L18 as back pressure issues prevent too much restriction. bummer.
"Tropic corridor, tropic treasure. What got us this far to this mild equator? We need someone, something new....something else to get us through" (James Douglas Morrison/The Doors)