With Firm Feel, Steer and Gear and others, they will rebuild your stock PS box to stock specs (virtually no change from the stock, no road feel as the original). Then on the stage 1, 2 or 3 they beef it up internally to give you progressively more more road feel. The stage 3 is most like a modern car. Although not yet installed in my Dart wagon, I went with stage 3. If it's anything like my Challenger, I will be very happy.
