I did consider having it fitted to my KX-2, but apparently it has to be fitted during manufacturing and can't be retro-fitted. I'm not sure how it works however.
I did have a 2009 Hyundai Santa Fe which had normal suspension. I was able to get hold of the workshop manual for the car. As Hyundai and Kia are sister companies and share many components, I do wonder if the suspension systems are the same. The Santa Fe self levelling suspension appears to beadjusted by the shock absorbers only, with no interconnecting pipework or compressor. There are different rated springs also for the 5 and 7 seat models, denoted by a coloured painted band.
Maybe a member who works for a Kia dealer could bring a bit more light on this subject? Edited by: Oldsalt
I have hunted high and low for adjustable shock absorbers, but no luck so far. The only thing I have found so far is Progressive Springs from MAD Springs, but £258 is quite a lot to pay out if it does not cure my caravan towing ride quality/stability.