No I have only the rear bar on.

I do realize that there are other ways to induce oversteer such as camber/toe settings and tire pressure, but I thought those are last attempts to induce it.

I assume a spring/shock/swaybar combo would be the greatest factor in making oversteer in a FWD car.

Mr.Fatbooty, are you sure the rear bar is adjustable for the ST one? If so where would the adjustability be made? The endlinks? The bar is just pure metal with a couple bends, nothing that would look like the bar itself is adjustable.