Founded in Yokohama in 1966, TEIN, Inc. originated as an OEM shock supplier before launching its eponymous brand in 1990, built on the ethos of “Technical Innovation”. Their products—from lowering springs like S‑Tech/H‑Tech to adjustable coilovers (e.g., Flex, Mono, EnduraPro) and custom “Specialized Dampers”—are designed and assembled in Japan, with global R&D and ISO‑9001 certified quality control.

TEIN’s motorsport roots run deep, fueled by competition experience in rally and WRC since the 1980s. Innovations tested in extreme conditions filter directly into road and race applications. TEIN USA, established in 2001 with a facility in Downey, CA, fine-tunes damping, spring rates, and ride height specifically for North American roads and preferences.

With meticulous R&D—over 10 million life-cycle strokes per shock, regional dyno and road testing—and a blend of handcrafted and high-tech manufacturing, TEIN delivers suspension systems that balance performance, comfort, durability, and precision. Whether for daily driving, canyon carving, track days, or rally rigs, TEIN offers options tailored to enthusiasts worldwide.