Cusco LSD RS 1.5-Way Rear Differential — Fits 2002-2007 Subaru Impreza WRX

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SKU: CUSLSD 183 L15
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About Cusco Cusco Japan engineers the strut-tower braces, sway bars, ...Read More

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Sale price$1,387.50 Regular price$1,480.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cusco

Cusco Japan engineers the strut-tower braces, sway bars, alignment correction, and limited-slip differentials that power JDM and time-attack programs. The brand behind countless Time Attack and grassroots motorsport podiums.

Watch in action

Precision Handling with Cusco LSD RS 1.5-Way

Upgrade your Subaru Impreza WRX with the Cusco LSD RS 1.5-Way Rear Differential. This high-performance unit is designed to provide the perfect balance between street drivability and track-ready performance. By utilizing a 1.5-way locking mechanism, it allows for smooth corner entry while providing aggressive locking under acceleration, giving you the confidence to push your WRX to the limit.

Key Features and Benefits

  • 1.5-Way Versatility: Offers a mild lock on deceleration and a strong lock on acceleration, ideal for spirited driving.
  • RS Coil Spring System: Reduces friction and promotes smooth, immediate engagement for better driver feedback.
  • Enhanced Stability: Significantly reduces wheel spin, ensuring your power is directed to the pavement.
  • Direct Fitment: Engineered for GDA/GGA WRX models, ensuring compatibility and ease of installation.

The Cusco RS series is renowned for its reliability and performance in the most demanding environments. Whether you are looking to improve your car's balance on a winding road or seeking better traction for autocross events, this differential is the ideal solution. Invest in the best for your vehicle's drivetrain and feel the difference in every gear change. Find all your essential performance upgrades at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2002-2007 Subaru Impreza WRX
2006-2007 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX TR

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cusco

Cusco Japan engineers the strut-tower braces, sway bars, alignment correction, and limited-slip differentials that power JDM and time-attack programs. The brand behind countless Time Attack and grassroots motorsport podiums.

Watch in action

Precision Handling with Cusco LSD RS 1.5-Way

Upgrade your Subaru Impreza WRX with the Cusco LSD RS 1.5-Way Rear Differential. This high-performance unit is designed to provide the perfect balance between street drivability and track-ready performance. By utilizing a 1.5-way locking mechanism, it allows for smooth corner entry while providing aggressive locking under acceleration, giving you the confidence to push your WRX to the limit.

Key Features and Benefits

  • 1.5-Way Versatility: Offers a mild lock on deceleration and a strong lock on acceleration, ideal for spirited driving.
  • RS Coil Spring System: Reduces friction and promotes smooth, immediate engagement for better driver feedback.
  • Enhanced Stability: Significantly reduces wheel spin, ensuring your power is directed to the pavement.
  • Direct Fitment: Engineered for GDA/GGA WRX models, ensuring compatibility and ease of installation.

The Cusco RS series is renowned for its reliability and performance in the most demanding environments. Whether you are looking to improve your car's balance on a winding road or seeking better traction for autocross events, this differential is the ideal solution. Invest in the best for your vehicle's drivetrain and feel the difference in every gear change. Find all your essential performance upgrades at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2002-2007 Subaru Impreza WRX
2006-2007 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX TR

Product Details

Product Description

About Cusco

Cusco Japan engineers the strut-tower braces, sway bars, alignment correction, and limited-slip differentials that power JDM and time-attack programs. The brand behind countless Time Attack and grassroots motorsport podiums.

Watch in action

Precision Handling with Cusco LSD RS 1.5-Way

Upgrade your Subaru Impreza WRX with the Cusco LSD RS 1.5-Way Rear Differential. This high-performance unit is designed to provide the perfect balance between street drivability and track-ready performance. By utilizing a 1.5-way locking mechanism, it allows for smooth corner entry while providing aggressive locking under acceleration, giving you the confidence to push your WRX to the limit.

Key Features and Benefits

  • 1.5-Way Versatility: Offers a mild lock on deceleration and a strong lock on acceleration, ideal for spirited driving.
  • RS Coil Spring System: Reduces friction and promotes smooth, immediate engagement for better driver feedback.
  • Enhanced Stability: Significantly reduces wheel spin, ensuring your power is directed to the pavement.
  • Direct Fitment: Engineered for GDA/GGA WRX models, ensuring compatibility and ease of installation.

The Cusco RS series is renowned for its reliability and performance in the most demanding environments. Whether you are looking to improve your car's balance on a winding road or seeking better traction for autocross events, this differential is the ideal solution. Invest in the best for your vehicle's drivetrain and feel the difference in every gear change. Find all your essential performance upgrades at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2002-2007 Subaru Impreza WRX
2006-2007 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX TR

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