Correction, the aus spec ones are revalved, but use the same spring rates as the jap ones. To say everything Jap Spec is pretty rough is a generalisation...I have the Jap Spec Super Streets and I can tell you now, the ride is only a tad firmer than stock suspension...5k fronts 4k rears. Most of my passengers don't even believe me when I tell them I have Jap coilovers...