many options for exhausts specially on the baggers - i like the look of the 2 pipes exiting under the bags so went with monster ovals as they have a nice deep rumble and look awesome stuck out under the bags and they alone offer a nice increase, mated to the power X header from vance and hines you get some of the benefit of the 2-1 system but the exit is still 2 so the system is 2-1-2, but for out and out power and tq the 2-1 will be better
i use 2-1 exhausts on all my bikes other than my big bore dyna as it ran better with 2-2 systems - i currently have the 2-1 outlaw pipe on my vrod and had the 2-1 on my fat boy - IMO baggers look better with 2 pipes