Got it. I did not put the "damping" criteria next to the "compression" and so I misunderstood it. RON430 explained it quite clearly also. Thanks guys and I'll be following this thread closely. That's my next step. I still think that inspite the GS suspension has a lot more to be desired. One night a few days ago, I was rounding a curve at around 70mph, no traffic, asphalt and uphill, when right on the curve was a mild bump followed by a dip. At 70, it translated to my ***** going up through my neck. I thought my rear end was airborne for a while. It's outright dangerous with stock. Got to do something on it. I do this all the time with the LS - bone stock suspension - on the same familiar curve and it didn't catch my attention until the GS. In a sense, I can say that softer suspension, such as in the LS, does not necessarily mean less performance. Something is the matter with the GS stock suspension. Wheeww.

whitels - I can't say enough to agree. I understand that Lexus is probably not marketing to most of us here but I think the stock suspension on the GS is disappointing. I can understand people getting carsick in a GS, I felt queasy on the stock suspension. I can't figure out who likes those settings. The stock shocks are horrible and the 2k1 version and later are ridiculously designed. Even if I could accept the ride on other Lexus models, the GS4 needs to be treated differently. People who want Town Cars are buying Town Cars, GS4s are being bought by people who deserve handling commensurate with that marvelous engine and drivetrain. Enough on the soapbox, at least it is amazing what a few minor changes can do. The GS is a remarkable car with a few simple upgrades. Thank goodness we can get the parts and make the improvements without having to crack the computer codes. I really wish one of the magazines could test a slightly modded GS in their comparos. It is unbelievable that the stock GS4 does as well as it does in those things.