OS Giken

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OS Giken was founded in the early 70s in Japan, with the goal of building high-performance Japanese race engines that could compete against the winning European alternatives that were available. Through a huge passion and the will to learn, founder Masaharu Okazaki took parts apart in his garage, learned how they worked and redesigned them for the better.

< p>Fast forward time and the Olympics Giken is today a supplier of quality parts used by racing teams worldwide. All products are designed and manufactured in Okayama, Japan. The assortment today includes sequential gearboxes, gear sets, LSD diffs and clutches.