I have a whiteline front sway but I haven't fitted it, it did come off another AW11, googling around it looks like BTF20Z is the right part for the AW11. Note BTF not BTR.
For the rear sway, a lot of people use a factory SW20 turbo sway bar, as they are 22mm? I believe. Mounting points are the same and although the sway is different to the AW11 swaybar, it 100% fits with no fouling.
Also from what I hear, the beefier rear sway makes the car a LOT more tail happy, so watch out for oversteer! It will allow it to grip more before it does let go though.