I'm also looking at coilovers. I had KW V3 on my RS5 and they were a pretty good ride, just need to find the right adjustment to suit your driving style. I have been deciding between BC, D2 and KW. Obviously the KW are a lot more expensive and probably better but since I don't track my car I may go the cheaper option providing they come with some sort of warranty. BC seem to have good reviews on club lexus