Cusco LSD BM1 L2 Type RS 2-Way Limited Slip Differential

The Cusco LSD BM1 L2 Type RS is a high-performance 2-way limited slip differential engineered for serious competition and aggressive street driving. Proven in the All Japan Gymkhana Championship, the Type RS completed full seasons of competition without requiring a single overhaul, with participating drivers and teams consistently achieving strong championship results.

Cusco's in-house research demonstrates that the Type RS features initial torque that is 50–70% lower than conventional cone plate-type LSDs, resulting in reduced drive friction and significantly improved throttle response. The low-pressure clutch plate design extends service life, prevents plate sticking, and keeps chattering to a minimum — all while maintaining high LSD efficiency through optimized oil flow between plates.

Key Features:

• Competition-proven durability — survived a full Gymkhana season without overhaul
• 50–70% lower initial torque compared to conventional cone plate LSDs for reduced drive friction
• Low power loss translates to improved lap times even in mildly tuned vehicles
• Minimal clutch chatter for a refined, predictable driving experience
• Low-pressure clutch plates reduce wear and deterioration over time
• Optimized oil flow between plates for higher LSD efficiency
• Special precision springs in the pressure plate ensure consistent, steady coil movement

Understanding LSD Settings:

• 1-Way LSD: Engages under acceleration only; releases under deceleration. Ideal for front-wheel drive and AWD front axle applications. Improves lap times with minimal understeer impact.
• 1.5-Way LSD: Engages primarily under acceleration with a reduced locking effect under deceleration compared to a 2-way. Best suited for drivers who want performance without aggressive understeer on corner entry.
• 2-Way LSD (this unit): Engages on both acceleration and deceleration. Recommended for rear-wheel drive and AWD rear axle applications. Ideal for drivers who prefer aggressive driving styles and high-angle drifting.

The Cusco Type RS LSD BM1 L2 is the go-to choice for performance enthusiasts seeking a track-ready, durable, and responsive limited slip differential with a race-validated design.