Should have added these earlier, but if these bars come up again, maybe it'll help someone out. In the pics, you can get an idea of how massive these bars are. Also included is a chart from the Pfadt site that compares the rates of some stock, Pfadt JOC, Pfadt high rate (HR, race bars) and low rate (LR, race) bars. For the C6 Z06, you see that the front rate is about doubled from stock. Rear is adjustable for three rates and stays closer to stock. From what I understand about bars, this setup for the C6Z helps to bring the car into more neutral handling vs more oversteer (stock). From my experience with this JOC setup (middle rate on rear), it increases steering response and understeer (car pushing rather than rear sliding out), which is nice since you can decrease throttle to correct and this car is such a rear slide monster anyway.
If the JOC shocks were offered alone, I'd be interested in that drop.