Originally Posted by Stohlen
a stiffer rear staw bar is going to allow for the car to roll through the corners at an increased speed because it will more evenly balance weight distribution among the wheels, increasing traction on the inside wheel. I.e. there wont be as much weight on the outer wheel.
you have this backwards. a stiffer swaybar serves to REDUCE traction from the inside tire by increasing comparative loading of the outside tire. this is why a stiffer rear bar can cause the e-diff to underperform.