Cusco LSD RS 2-Way(1&2) Rear Subaru 08-13 SH Forester EJ25T / 5AT

This is the Cusco RS 2-Way limited-slip differential (LSD) for the rear of your 2008-2013 Subaru SH Forester equipped with the EJ25T engine and 5-speed automatic transmission. A limited-slip differential is a crucial component for improving traction and handling, especially when you're pushing your vehicle or driving in varied conditions. Unlike an open differential, which sends power to the wheel with the least resistance, an LSD can distribute torque to both rear wheels, even if one starts to lose grip. This Cusco RS model is a 2-way type, meaning it engages both during acceleration and deceleration, which helps stabilize the rear end during cornering and braking.

The RS series from Cusco is designed for a more aggressive engagement compared to their MZ series, offering a strong lock-up that drivers often seek for performance driving. This particular unit is a 1.5-way/2-way hybrid, providing full lock-up on acceleration and a significant lock-up on deceleration. This characteristic is beneficial for drivers who want a more predictable and stable feel when exiting corners or during spirited driving. The construction uses well-built components designed to handle the stresses of performance use. Installation involves replacing the factory differential, and it's recommended to have this done by a qualified mechanic who is familiar with differential work, as proper setup and gear mesh are critical for its function and longevity.

When installing this LSD, it's important to follow the manufacturer's break-in procedure to ensure the clutch plates seat properly. This typically involves a period of gentle driving and specific fluid changes. This differential is a significant upgrade for any Forester owner looking to enhance their vehicle's performance and handling capabilities, providing a more connected and responsive driving experience.