The Bilsteins are worth every penny. They ride far better than the KYB's, and don't punish you through bumps and potholes like the KYB's do. And they handle the higher spring rates of larger torsion bars with ease.
I've got Bilsteins on my '68 Dart with a stock suspension and worn out bushings and the car drives amazing. Before that I had collapsed oe shocks up front and air shocks that can't hold air in the rear. That car was wavy on the freeway before, now it's very smooth. Almost like a new car.