I got my tires changed at AJ usa and they were good and pretty reasonably priced. They specialise in luxury and performance cars. I am planning to take my car in to them for a tune up and see if they have any suggestions for getting a couple more hp out of her. When I took it in for the tires, the service rep knew about contours having problems with the lower control arms and showed me the condition of mine (not good), so they are familiar with them.