Hi There,
The ride felt a bit stiffer as the springs are no doubt designed for more weight. I have since removed the front and rear sway bars completely and i'm very happy with the ride quality. There is of course more body roll but is a very minor issue as we drive this vehicle very conservatively on the street...
I have asked H&R for the spring rates but have not heard back from them.
Last night I did install Volk TE37-XT wheels on the car though
-=terry