Cusco LSD 471 F Type RS Spec F Limited Slip Differential Front 1-Way

The Cusco LSD 471 F is a Type RS Spec F limited slip differential engineered for front-wheel drive performance applications. This 1-way clutch-type LSD is specifically designed for 2007-2009 Mazda Mazdaspeed3 models equipped with the factory torque-sensing differential.

Type RS Spec F Technology:

The Spec F variant features FFD (Flat Friction Disc) technology with precision-polished surfaces that generate uniform and smooth frictional force for stable operation. Unlike the more aggressive Type MZ model, the Type RS utilizes coil springs to absorb initial torque, providing gentler engagement and smoother operation ideal for street driving. The low initial torque setting enables smooth cornering even when the LSD mechanism is not activated, while the coil spring design delivers overall gentle and stable performance.

Key Features:

• 1-way operation activates under acceleration and acts as a true LSD when throttle is off
• FFD flat friction disc surface for mild effectiveness characteristics perfect for street use
• RS coil springs sit inside pressure rings and can be adjusted for personal customization
• Springs apply constant pressure against clutch plates, minimizing loss of initial torque over time
• Radially-cut clutch plate grooves enable instant oil movement for improved efficiency and durability
• Polished pressure ring contact surfaces ensure even and flat contact with clutch plates
• Cusco Oil Through System enhances oil circulation and supply throughout the differential
• Chromoly steel construction with forged internals for extreme durability
• Adjustable responsiveness and locking characteristics through plate combination and stacking
• Lower chattering and reduced power loss compared to cone-plate type LSDs

The Type RS delivers 50-70% lower initial torque compared to conventional cone-plate LSDs, resulting in lower drive friction, better response, and improved lap times even for mildly tuned vehicles. The low pressure on clutch plates improves durability and allows for less frequent differential oil changes. Specially suited for front-wheel drive cars and all-wheel drive front axles.