Ive had a few brands of coilovers over the years K sports, Zeals, D2's and a few friends have had Teins & buddyclubs Honestly the k sports are quite good for the money, they arent the same as D2's im sure, they D2's werent much chop Zeals were the best for ride quality but at the same time the worst for noise, i think i had a particulary bad set, i hated them they had extremely noisy tops the K sports are reasonably quiet, a little firm but they are adjustable and can go very low Teins super sports are good value for money Buddyclubs are similar to tein ss's , good quality & reasonable pricing but i believe will allow you to go lower id go for the N+ racing dampers :)