The Enkei manufacturing plant, which produces AME Wheels amongst other very high-quality wheel brands that I am unwilling and unable to share at this time, is the ONLY wheel manufacturing plant in the world that is ISO 9000 certified. What does this mean? That there are probably less than 1 defect per million units produced. Basically it’s to assure customers that suppliers can provide quality products and services. Basically, it’s a quality management system intended to serve the needs of customers. ISO is recognized worldwide and can be used by Toyota, Honda, etc. to use in their evaluation of Enkei and their products. AME gets the benefit of knowing that ISO has approved them which is another requirement as a supplier for Toyota (especially) and other companies. It’s taken Enkei several years to become ISO certified. Google “ISO 9000″ to get more information or click here.