All the way back via over the axle or under the axle is possible. Time ran out on Freedombird, but is being redone with all new 2.5" pipes and tails out the back in the next couple of weeks. My car is dumped, it ungodly loud anyway, and for now it suits me. I'll end up taking mine all the way back when I have a chance.
Getting full tails on the car by going over the axle is doable, gonna take some time and creative thinking, but for sure doable!