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) Sizes 17, 18′′ Available in Matte Silver or Matte Black Spec-E Inspected MAT Process Created with MAT Technology (Most Advanced Technology), a new manufacturing process or aluminum wheels, which drastically improves the material property and strength of the wheels. Shaping the wheels using the MAT process reduces wheel weight by up to 15%. This allows you to reduce the overall weight of your vehicle weight by 20lbs. Rim-Rolled technology shapes the rim to improve material elongation without sacrificing the wheels. All Enkei wheels are Spec-E inspected to pass rigorous testing. Spec-E testing is tougher than JWL requirements. Get ready to bolt these on and make those heads turn. Our staff is ready to help you with whatever you need to get these wheels from our warehouse onto your car.