OS Giken Mazda FC3S RX-7/RX8 STR Twin Plate Clutch overhaul kit B (STR2C) while also reducing the “clunkiness”

while also reducing the “clunkiness” of traditional clutch-type LSDs

Nissan Skyline GT-R (R34) - OS 88 Transmission

Hyundai Genesis 2

The "EXTRA MOTOR OIL" version of the T-shirt sold from 2021

Our unique floating dampened center hub design is built to withstand transmission shock and abuse from high-powered racecars

OS Giken Mazda FC3S RX-7/RX8 STR Twin Plate Clutch overhaul kit B (STR2C) while also reducing the “clunkiness”The STR Clutch line up was designed to hold high capacity power while still retaining a relatively light clutch pedal. This technology was driven from our racer's demand for a lighter clutch during long endurance races in Japan. Heavy clutch pedals lead to driver fatigue during long endurance racing. The STR2C Twin plate feature solid hub clutch disks to provide efficient transfer of power while providing reliability and strength under heavy abuse.