Unleash the full potential of your JDM sports car, Nissan Skyline, 240SX, Toyota Supra, or Honda S2000 with the uncompromising precision of OS Giken drivetrain components. As a leader in Japanese high-performance engineering, OS Giken delivers clutch, LSD, and gear solutions trusted by professional drift, drag, and circuit racing teams worldwide.

At Straight Six Imports, we supply the full catalog of OS Giken parts designed for exceptional power handling and unrivaled durability, giving you maximum control and confidence on the track or the street.

Why Choose OS Giken for Your Performance Build?

• Superior Clutch Technology: Explore the multi-plate clutch lineup—from the TS (Single/Twin) and TR (Twin/Triple) series to the extreme R-Series—engineered with proprietary pressure plate designs for high torque capacity and surprisingly light pedal effort.

• Revolutionary Super Lock LSD: Experience the world-renowned OS Giken Super Lock Limited Slip Differential. Its patented design houses up to twice the number of friction plates compared to competitors, providing progressive, quiet, and reliable 100% lockup without the harsh chatter, perfect for drifting and road racing.

• Precision Gear Sets: Maximize engine performance and transmission reliability with OS Giken Close Ratio Gear Kits, meticulously calculated for faster acceleration and sustained power delivery through every shift.

• Unmatched Durability: Every component is precision-machined from high-grade steel alloy and chemically heat-treated for longevity, eliminating the need for a break-in period and minimizing rebuilds.

Upgrade your transmission, put the power down, and drive with total confidence. Straight Six Imports is your trusted source for authentic JDM OS Giken performance parts.