Have you looked in the HKS Hipermax IV GTs? These are perfect for the street and have 10k Front / 9k Rear Spring Rates. 100% made in Japan and fully adjustable. But what is great about the HKS coilovers is that they come pre-set height and dampening out of the box. HKS does research on US roads and sets their coilovers at perfect range for daily driving. These specific coilovers are set at -21mm Front and -20mm Rear. So a little less than inch drop all around. Very comfortable for the street but also performs well mountain driving, ect.
Comparing these to the Tein Flex Z and BC Racing Coilovers as far as comfort and performance are concerned will be much better, IMO. Just an option im throwing out there if you havent seen these before.
