I installed these on my 85 Autocross car and I'm really pleased with them. Not going to bother re-hashing the install (they install like sway bars, and they fit really well!) But do have a few pics:
I'm what cyclists refer to as a "weight weenie" so habitually weigh everything I take off or replace on the car....
I can't say that I've fully put these through the paces yet in terms of expolring their adjustability. Since I had fresh rear tires, but old, hard, fronts (long story) for my final event of the season the car was understeering at the limit but I chose to play it safe and kept both bars at the middle setting.
What I can say for sure is the car reacted FAR better/faster than before, particularly in transitions. I'm running 21mm front and 28mm rear torsions in a 2350 pound car, which is fairly soft by most standards, but the roads (and empty parking lots!) around here a absolute S%^&%$# by any standard. So with this soft setup I was previously getting quite a bit of body roll.
With the new bars,both the turn-in and side to side transitions were quicker and more precise than ever before. Honestly it was like having a quick steering rack compared to before. The improvement was that obvious. Speed in Autocross is all about creating the largest radius arcs, through the course, as possible. The new bars shortened the length of time spent wallowing along in a straight line between the arcs so I was able to navigate the course with much less steering input.
Another way to think about it is that I was able to keep the tires working more of the time, instead of waiting for the body to roll over and (finally!) take a set.
In closing , I would say these bars perfectly suit a car with streetable torsion bars which may not have enough spring rate (and the associated low speed dampening) to adequately control body roll.
Thanks to Ryan and Eibach for bringing these to market!