| Year | Make | Model |
|---|---|---|
| 2008 - 2013 | Subaru | Forester |
| 1998 - 2020 | Subaru | Legacy |
Cusco LSD RS 1.5-Way Rear | Subaru Impreza WRX/Legacy B4/Forester SH (LSD 684 L15)
Cusco LSD RS 1.5-Way Rear | Subaru Impreza WRX/Legacy B4/Forester SH (LSD 684 L15)
SKU:LSD 684 L15
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â–¶ Vehicle Fitments
The Cusco RS 1.5-Way Limited Slip Differential is a high-performance drivetrain component designed to enhance traction and handling for Subaru Impreza WRX, Legacy B4, and Forester SH models. Engineered with a focus on efficiency and responsiveness, this LSD features Type RS springs that absorb initial torque, providing a smoother engagement compared to the Type MZ. Its low-friction design ensures more effective power transfer to the wheels, reducing power loss and improving lap times even on mildly tuned vehicles. Constructed with precision components, the Cusco LSD offers adjustable settings, allowing drivers to select two of three configurations through a simple overhaul, making it versatile for various driving conditions and preferences.
This limited slip differential is compatible with Subaru models from 2008 to 2014, including specific Impreza WRX, Legacy B4, and Forester SH variants. It is intended for performance-oriented street and track use, providing improved traction during aggressive cornering and acceleration. The installation involves a direct replacement of the stock differential, with no additional modifications required. The kit includes the LSD unit and necessary hardware for installation. Designed for enthusiasts seeking enhanced grip and handling, this Cusco LSD is ideal for spirited driving, racing, or any application where maximizing traction is critical.
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Overview
Overview
A Cusco Limited Slip Differential offers the absolute best in traction. Cusco LSD allow you to choose 2 of 3 settings with each unit just with a simple overhaul. The Type RS springs absorb the initial torque. Compared to the Type MZ, the Type RS s initial torque comes on more gently. The response of the RS has lower friction and in turn, is transfers power to the ground more efficiently. The Low Initial Torque means Less Power Loss. This equates to lower lap times, even for a mildly tuned vehicle. The low pressure on the clutch plates improves durability and lowers chatter. To top it off, the reduced pressure allows the driver to change the LSD oil less frequently. Steady coil movement is assured by special precision springs set in the pressure plate. These springs are made to be resilient and allow for stable operation. Because these plates do not utilize a cone clutch, they do not stick and allow for increased longevity. The Type RS transfers extreme power without slipping and responds quickly with pedal inputs. This differential is ideal for drag racing or going for drifting. Contact Us with any questions..
Cusco recommends the following setups for the following drivetrains.
- 1 way LSD: Specially suited for front wheel drive cars and AWD front axle cars.Activates under acceleration, and acts as a true LSD when the throttle is off.
- 1.5 way LSD: Activates under acceleration with less under-steer under deceleration than on a 2 way LSD. Recommended for those who want to reduce under-steer.
- 2 way LSD: Recommended on rear wheel drive cars and AWD rear axle cars. Activates on both acceleration and deceleration. Recommended for those who prefer aggressive driving and big angle drifting.