I have the wiring harness for 1990-1992 LS400 equipped with factory air ride, this controller allows you to slam the car down for the low-low look, or raise it up for 4x4 clearance (or anything in between). 3 custom presets can be programmed in addition to stock factory settings.
Asking $350 shipped. This is not available for retail sale in the US, and costs ~$650 new IF you can find one to be imported from Japan.
Shown below is the actual controller custom-mounted in the center armrest console of a US-spec 1990 LS400 for discreet quick-access.
