In 2005 I added an 1 1/8" front and 7/8" rear anti sway bar set from Addco. Body roll was greatly diminished, but since then the car has always had some oversteer as I pushed it. It would also do something sorta hard to describe: In faster turns whether under throttle, brake or coasting, the rear would feel as if it were ready to step out, come back and then step out again. This is with zero additional steering input. I am wondering if this were a matter of the small torsion bars reacting to irregular road surfaces; the outside wheel/suspension bottoming against the bumpstops then bouncing up off of them.
With bigger 1.15 bars and Bilstein shocks on the way, I hope to report an improvement.