Originally Posted by redux
Roll bar, anti-roll bar, anti-sway bar, the black tube in the picture below. It has many names, and it's been removed from the rear of my car.
Springs will be used to compensate for loss in roll stiffness.
You said you already removed the rear roll bar and that didn't help reduce oversteer, so why would you go with stiffer springs? That would help roll stiffness but also reduce rear weight transfer. Maybe a small roll bar and softer springs would do the trick.