[Walt Fricke]

If this is the one where you clamp the sway bar mounts to the torsion tube, I have heard people say they work better than the stock sway bar mounting system. Because the stock rear mounts are a bit weak when you run over rocks or othewise put unwanted pressures on them from hitting things (as in dipping your wheels over corner curbing at a track).

Though nowadays you would weld on reinforced stock mounts and be OK.

I have no personal knowledge of them, however.