I got some BC coilovers put on my IS200 this week by Sumo Power, and they did a great job, the only problem I had with the whole affair was insurance. I was with admiral, and when I told them i was thinking of it and wanted a quote they said they would no longer insure me. I looked around and Adrian Flux did me a brilliant deal, and only put my insurance up by £50 with my coilovers stated on the insurance.