I have a 20 mm front sway bar from japan as far as i can make out and on the rear i run a 18 mm whiteline 4 point adjustable sway bar
the front one was alwaysa in there so i threw the rear in to try and stiffen things up
works pretty well with the rear sway bar on the middle setting it handles like a track car good for grip but if you tighten the sway bar that it your going slideways