Introducing the OS Giken STR series, a powerhouse clutch capable of handling up to 550hp while maintaining near-stock drivability. With a remarkable 30% reduction in pedal effort, this series achieves its impressive power handling through cutting-edge plate and diaphragm designs. Versatile enough for everyday driving, race, and drift applications, the STR series includes a lightweight chrome-moly flywheel, a stylish ruby red-anodized billet aluminum clutch cover, and all necessary components. Check our Application List for compatibility details, such as Pressure Plate Material and weights for models like the Nissan Skyline ER34 with RB25DET. Elevate your driving experience with OS Giken's top-tier performance and innovation.