Cusco LSD Type-RS 1.5-Way (1&1.5 Way) Rear 15-24 Subaru WRX / 18-23 Crosstrek 6MT Only

This Cusco Type-RS 1.5-way limited-slip differential (LSD) is designed for the rear of 2015-2024 Subaru WRX and 2018-2023 Crosstrek models equipped with the 6-speed manual transmission. An LSD is a crucial component for performance driving, especially in vehicles with rear-wheel bias or all-wheel drive systems. It allows for a more controlled distribution of power between the rear wheels, improving traction during acceleration out of corners and enhancing overall handling stability.

The Type-RS model from Cusco is a well-known option for enthusiasts seeking improved performance. Its 1.5-way activation means it engages more strongly during acceleration than deceleration, providing a predictable feel when you're on the throttle. This design helps to reduce wheel spin and ensures that both rear wheels are working together more effectively, especially when one wheel might lose traction. The internal components are built for durability and consistent performance under demanding conditions. Installation of an LSD typically involves removing the differential housing, disassembling it to replace the factory unit, and then reassembling and refilling with the correct differential fluid. It's a job that requires precision and attention to detail to ensure proper function and longevity.

When installing this differential, it's important to use the specific differential fluid recommended by Cusco, as the clutch plates within the LSD require a special additive for smooth operation and to prevent chatter. You will also need to ensure that all seals and gaskets are replaced to prevent leaks. This LSD is a significant upgrade for drivers looking to maximize the performance potential of their WRX or Crosstrek on track days, autocross events, or spirited driving on winding roads.