Cusco LSD 329 C15 Type RS 1.5-Way Limited Slip Differential

The Cusco LSD 329 C15 Type RS is a competition-proven 1.5-way limited slip differential engineered for K20A-powered Honda and Acura platforms. Developed through real-world motorsport validation — completing a full All Japan Gymkhana Championship season without a single overhaul — the Type RS delivers the ideal balance of performance and durability for both spirited street driving and track use.

Unlike conventional cone plate LSDs, the Type RS uses a precision coil spring system within the pressure plate to manage activation pressure in the same direction as initial torque. This design results in 50–70% lower initial torque compared to traditional cone plate units, reducing drivetrain friction, minimizing power loss, and improving overall throttle response.

Key Features:

• Lower initial torque — 50–70% reduction versus conventional cone plate LSDs for improved response and less power loss
• Reduced chatter — low clutch plate pressure keeps noise and vibration to a minimum
• Enhanced durability — lower plate pressure reduces wear and extends clutch plate life
• Improved oil flow — smoother lubricant circulation between plates increases LSD efficiency
• Precision coil springs — set in the pressure plate to ensure consistent, stable coil movement
• No plate sticking — eliminates the clutch plate adhesion common with cone-type LSDs, reducing deterioration
• Adjustable configuration — unit ships as 1.5-way but can be reconfigured to 1-way with a simple overhaul

LSD Configuration Guide:

• 1-Way: Activates under acceleration only; acts as an open differential when off-throttle. Ideal for front-wheel drive and AWD front axle applications.
• 1.5-Way: Activates under acceleration with reduced understeer on deceleration compared to a 2-way setup. Recommended for drivers who want strong traction without aggressive deceleration lock.
• 2-Way: Activates on both acceleration and deceleration. Best suited for rear-wheel drive and AWD rear axle applications where aggressive driving and large-angle drifting are desired.

The Cusco Type RS LSD is manufactured in Japan to exacting tolerances, making it a top choice for performance street builds and competitive motorsport applications requiring reliable, consistent traction control.