rear sway bar?
I can attest to what Dave says on how the car performs. It is night and day with a matched set of bars. For adjustability, the rear Hellwig bar is the way to go.
Don't get me wrong, I am not slamming Firm Feel, they good stuff as well. Their front bar is fine, just a bigger fan of Hellwig's rear bar.
Addco on the other hand..........