Picked up some lug nuts a while back from my sponsor, Kami Speed – Kyo Ei Ti64 Titanium Lug nuts. These are extremely light, and feel like toys. They are almost as strong as steel, and almost as light as aluminum, so they don’t excel in one or the other. Below are some images comparing the steel lugs I used for track days, the AL lugs I used for autox, and the new ti64 lug nuts: