Originally Posted by gomer_110

This^^^^^^^. Penske's are the gold standard for dampers. Between Penske, JRZ, and AST, I'd go with Penske every day of the week. Only reason I have AST instead of Penske's on my car is I could find someone to work with within the time frame I needed.

The spring rates of those used Penske's are right where you'd want them for performance driving. They'll be a little stiff on the street but nothing that's too hateful to drive. With the Penske valving, they probably actually drive rather well.