Cusco LSD BM0 C15 Type-RS 1.5-Way Limited Slip Differential Mini Cooper S

The Cusco LSD BM0 C15 Type-RS Limited Slip Differential is a high-performance mechanical plate-type LSD designed for Mini Cooper S applications. Engineered and manufactured in Japan, this differential delivers exceptional traction and control for both street and track use.

Type-RS Technology:

The Type-RS design utilizes specialized coil springs rather than traditional cone springs to generate initial torque, providing smoother engagement and superior throttle sensitivity. This coil spring system applies constant pressure against the clutch plates, resulting in more progressive locking characteristics and minimal loss of initial torque over time. The lower initial torque setting enables smooth turning even when the LSD mechanism is not fully activated, while reducing clutch plate wear and extending service life.

Key Features:

• 1.5-Way configuration activates under acceleration with reduced effect during deceleration, ideal for minimizing understeer
• Adjustable pressure rings with two ramp angle options for tuning to specific driving conditions
• High-tensile forged chromium-molybdenum side gears, pinion gears, and case for extreme durability
• Oil Through System case design maximizes LSD cooling and reliability during extended use
• Radially grooved clutch plates enable instant oil movement for improved efficiency and longevity
• Low initial torque design reduces power loss and can improve lap times even in mildly tuned vehicles
• Reduced clutch plate pressure minimizes chatter and extends time between oil changes

What is a 1.5-Way LSD?

A 1.5-Way differential provides maximum locking force during acceleration while offering reduced locking during deceleration compared to a 2-Way design. This configuration is particularly beneficial for front-wheel drive applications and vehicles where understeer control is critical. The 1.5-Way setup delivers optimal power transfer on corner exit while maintaining balanced handling characteristics at corner entry.

Cusco is ISO 9001 certified and manufactures all components in-house to ensure consistent quality and performance. Each Type-RS LSD is precision-engineered to meet the demands of motorsport enthusiasts and serious drivers who require maximum traction and adjustability.