What is the difference between a 1.5-way and a 2-way LSD?

A 1.5-way LSD locks under acceleration and provides a partial lock under deceleration. A 2-way LSD locks under both acceleration and deceleration. The 1.5-way offers a good balance of traction and stability for many driving scenarios.

What is included with this Cusco LSD?

This listing is for the Cusco MZ Type 1.5 Way front limited-slip differential. Installation hardware and specialized differential fluid are typically sold separately and should be sourced according to manufacturer recommendations.

Will this LSD fit my specific Subaru Impreza model?

This front LSD is designed to fit the 2004-2007 Subaru Impreza models (GDB/GRB/GVB). It is recommended to verify your vehicle's exact model and year against the fitment information provided.

Specifications

Brand: Cusco
Part #: LSD 184 B15
UPC: 4996338017215

Cusco LSD MZ Type 1.5 Way (45/0 & 45/15) Front Subaru GDB/GRB/GVB

Name: Cusco LSD MZ Type 1.5 Way (45/0 & 45/15) Front Subaru GDB/GRB/GVB
Brand: Cusco
SKU: cusco-cusco-lsd-mz-type-1-5-way-45-0-45-15-front-subaru-gdb-grb-gvb-t14-301588
Price: 1420.80 USD
Availability: BackOrder

$1420.80

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Fits 2004-2007 Subaru Impreza. Cusco 1.5-way front LSD for improved traction and handling.

Key Features

Fits 2004-2007 Subaru Impreza GDB/GRB/GVB.
Cusco MZ Type 1.5 Way front limited-slip differential.
Features 45/0 & 45/15 ramp angles for a balanced locking effect.
Improves traction and handling by distributing power to both front wheels.
Helps prevent wheelspin and enhances corner exit speed.
Designed for performance driving and track applications.

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About this part

Product Details

This is the Cusco MZ Type 1.5 Way front limited-slip differential (LSD) specifically for your 2004-2007 Subaru Impreza GDB/GRB/GVB models. If you're looking to significantly improve your car's traction and handling, especially during spirited driving or on track, an LSD is a key component. This unit replaces your factory open differential, allowing both front wheels to receive power more evenly, which helps prevent wheelspin and puts power down more effectively out of corners.

The '1.5 Way' designation refers to how the differential locks and unlocks. In this case, it locks under acceleration (like a 2-way) but also provides a degree of locking under deceleration. The specific ramp angles (45/0 & 45/15) are tuned to offer a strong locking effect during acceleration for maximum grip, while still providing some stability and control when you lift off the throttle. This makes it a popular choice for drivers who want a noticeable improvement in corner exit speed and overall stability without the harshness sometimes associated with a full 2-way differential. Cusco is well-known for their performance drivetrain components, and this LSD is built to handle the demands of performance driving.

Installing a limited-slip differential is a significant upgrade that changes how your car puts power down. It's a job that requires careful attention to detail and proper setup to ensure optimal performance and longevity. If you're rebuilding your drivetrain or looking to maximize your Impreza's performance potential, this Cusco LSD is a solid option.