TEIN USA is a company that specializes in distributing high-performance suspension products made in Japan, including order-made coilovers, aftermarket suspension parts, gauges, motorsport equipment, overhaul/repair services, and racing support. They operate from their facility in Downey, California, where they handle sales, operations, marketing, repair/revalving, new product testing, demo vehicle preparation, and West Coast warehousing. TEIN USA is dedicated to providing high-quality products at reasonable prices and offers complete product services, technical support, and a fully stocked warehouse for timely product delivery to North and South American consumers.