Ping checking in... what I said above I stand by. The bushings are relocated with this bracket to the outside of the swaybar (near the bend) to give a "cleaner" pivot point to the bar (refer to the original "klunk" threads for an explanation, or think of holding a pen with the pocket clip bent out - if you hold the pen in the middle and try to rotate the pen using the pocket clip, it will both rotate and "bend" (pivot in the middle). If you hold the pen at the base of the pocket clip the pen will just rotate. That's what the bushing relocation does - move the bushings closer to the pivot point.
This fixes the "clunk" two ways: 1) New bushings that aren't ovalled out, and 2) no "bend" in the bar as it goes through the bushings, just rotation, which keeps 'em from wearing out again (or "as fast"). Nice thing is that the bushings are replacable with off-the-shelf parts for cheap and fast - a good combination.
I've had mine on almost a year and they're fine, mine were prototypes and didn't have the fancy plating or anything, just black and naked aluminum with cad-plated Energy Suspension zerked urethane bushings. I've greased 'em twice, once at 7k and again after a lo-ong wet drive as a preventative measure. No clunk yet, and they do give a noticably "better" performance - where there used to be a small "hitch" as one bent the car into a long tight sweeper, it's now a smooth transition to take a "set". The rear is a little stiffer but not obnoxiously so, and yes you definitely can lift a wheel on driveway aprons or autoX turns.
Auto X. Hmmm. Unless you have a non-observant inspector these are definitely not stock. Sorry. Dave races and can add detail or check his website or previous posts.
Hope this helps, here are a few pictures of mine. Yes, those are 03.5 wheels. No I don't have any more and am not selling mine. If you want the whole car, bring money and maybe we'll talk.
Note that some pics show a red non-zerked bushing, this was an original test piece and didn't work b/c it was ribbed inside, non-lubed, and squeaked like a mouse despite grease. The black and red zerked bushings worked about the same, the one I have the mileage on is the black. They're like $14 a set at Summit, JC Whitney, or your local speed shop - just get the right size as a 19mm is wa-ay too small (squee-eek).
Oh - lubing - you can give each zerk a shot of grease fron outside the car without jacking up, without lying down, and your pants can remain clean if you don't kneel.