Cusco LSD 617 C15 Type RS Limited Slip Differential 1 & 1.5 Way Front LSD

The Cusco LSD 617 C15 is a Type RS mechanical plate-type limited slip differential engineered for high-performance street and competition applications. This front LSD features Cusco's innovative coil spring design that delivers smooth, progressive engagement with lower initial torque compared to traditional cone-plate LSDs, making it ideal for drivers who demand precise throttle response and reduced understeer characteristics.

Type RS Technology:

• Coil spring pressure system applies activation pressure in the same direction as initial torque for smoother engagement
• 50-70% lower initial torque compared to conventional cone plate LSDs for reduced power loss and improved throttle response
• High-tension chrome molybdenum steel housing and gears for extreme durability under high horsepower applications
• Precision-machined clutch plates with radial groove technology for instant oil movement and improved efficiency
• Oil Through System case design with large oil windows maximizes cooling and lubrication for extended service life

1 & 1.5 Way Configuration:

This LSD is pre-set for 1.5-way operation, which activates under acceleration while minimizing understeer during deceleration. The dual-profile pressure rings allow switching between 1-way and 1.5-way settings by reversing the internal cam, providing versatility for different driving styles and track conditions without purchasing additional components.

Key Benefits:

• Lower clutch plate wear and extended rebuild intervals due to reduced pressure and friction
• Minimal chattering for comfortable street driving
• Competition-proven reliability in demanding motorsport applications
• Improved lap times through reduced power loss and better mid-corner control
• Enhanced throttle sensitivity and finesse for precise vehicle placement

The Type RS design features special precision springs set in the pressure plate that maintain steady coil movement and constant pressure against the clutch plates, preventing plate sticking and minimizing initial torque loss over time. This makes the 617 C15 an excellent choice for street-driven performance vehicles, road racing, autocross, and gymkhana competition.