The Kojin takes the traditional 5-spoke design and adds just the right contours to give it an aggressive tuner look without being too loud about it. The Kojin is built using Enkei's original MAT technology to achieve the ultimate in strength and light weight. The Enkei Kojin is where art and science meet to create the next big step forward in wheels. 17×9 and 18×9.5 are more concave than smaller width fitments (The photo on the left is of an 18×9.5 +15)