I hate to post a negative post here but flame suit is on.
You CAN get all the oversteer you want from the stock bar with AGX's ONLY aa well as toe and camber settings. I too did not believe it, until I spent a day in Chris F's car at the Autox. His car throttle steer a LOT easier than mine did with a 20mm bar in the rear. The only diferance between our cars as far as suspention goes is the 20 mm bar in the back and the toe and camber settings....
just my2c...
Andre