OS Giken Super Lock LSD for Nissan Skyline R34 RB25DE/T & Silvia S15 SR20DET ...

OS Giken Super Lock LSD for Nissan Skyline R34 & Silvia S15 Fitment: Nissan Skyline R34 RB25DE/T & Silvia S15 SR20DET (manual transmissions only). Engineered by OS Giken, the Super Lock Limited Slip Differential (LSD) delivers precision traction control for spirited street driving and track use. Optimized for RB25 and SR20 drivetrains, this unit improves cornering stability, throttle response and power delivery under load. Key Features High-performance clutch pack for immediate engagement and consistent lockup. Durable construction using hardened alloys and precision machining for long life. Optimized locking behavior tailored to R34 RB25 and S15 SR20 gear ratios and torque characteristics. Track-ready yet street-friendly — predictable traction without unpredictable snap-oversteer. Direct fit for manual transmissions; retains factory installation points for straightforward upgrade. Perfect for drivers seeking enhanced corner exit traction, improved lap times, and a more confident driving experience. Backed by OS Giken engineering and quality control. Note: Confirm compatibility with your specific transmission code and gear ratio before purchasing. Professional installation recommended.