I am still not fully convinced that all of these braces do
anything but add more weight, but
do want to hear your impressions of them.
As far as I'm concerned, the strut tower brace would have to be TRIANGULATED into the cowl structure of the unibody somehow (and maybe even the SIDES of the towers) in order to be effective (which NONE of the ones I've seen for our app do).
Of course, once that is done one also has a much better chance of cracking the windshield on a hard road impact/pothole/crater/ledge, etc.
I am
thinking about trying the Pierce inside the rear beam axle 'torsion bar', but may just end up with the Eibach, or Suspension Techniques rear sway bar instead.