Cusco LSD RS1.5 AP1 S2000

The Cusco RS 1.5-way limited slip differential (LSD) is built with a unique cone plate system that offers a distinct engagement feel, especially noticeable during cornering. This unit is specifically designed for the AP1 generation Honda S2000, offering a significant upgrade over the factory open differential. By mechanically biasing torque between the rear wheels, it helps put power down more effectively, reducing wheelspin and improving acceleration out of turns. The 1.5-way design means it engages more strongly during acceleration than deceleration, providing a predictable feel that many performance drivers appreciate.

Cusco is well-known for its drivetrain components, and this LSD is a prime example of their focus on performance and durability. The RS series utilizes a high-strength steel casing and precision-machined internal components to handle the demands of spirited driving. The cone plate design, a signature of Cusco's RS differentials, allows for smooth engagement and a progressive lock-up that can be tuned with different spring pressures and plate configurations. This makes it a popular choice for S2000 owners looking to enhance their car's handling characteristics on both the street and the track. Installation involves removing the factory differential and replacing it with this unit, often requiring specialized tools and knowledge of drivetrain components.

When installing this differential, it's important to use the correct gear oil recommended by Cusco to ensure proper break-in and long-term performance. The RS 1.5-way LSD is a substantial upgrade for any AP1 S2000 owner seeking improved traction and a more connected driving experience. It's a well-built component designed to complement the S2000's already capable chassis.