Tein manufactures high performance suspension products for many different Japanese and European vehicles. Based in Japan, Tein USA has established itself with an incredible R&D facility and staff to help handle the tuner market. Tein has developed several different types of coilovers through their racing experience. This includes drift, road, rally, and street driving. Tein's popular coilovers include the Type Flex, SS, and CS coilovers. Tein also manufactures lowering springs for those wanting a better look and handling with the stock struts. Their STech springs are used by many street drivers with great success. Spring rates, valving, ride height, and ride height adjustability were all chosen for local (US & Canada) road conditions and consumer demands.