Cusco Rear Sway Bar 21mm Performance Upgrade — Fits 2005-2009 Subaru Legacy

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SKU: CUS684 311 B21
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About Cusco Cusco Japan engineers the strut-tower braces, sway bars, ...Read More

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Sale price$285.94 Regular price$305.00
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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

Sharpen Your Handling with Cusco 21mm Rear Sway Bar

Take control of your Subaru Legacy's handling with the Cusco Rear Sway Bar (21mm). This performance-oriented upgrade is designed to minimize body roll and improve the overall balance of your vehicle, providing a more responsive and engaging driving experience on both the street and the track.

Key Advantages:

  • Optimized Diameter: 21mm thickness provides the perfect balance of stiffness and compliance.
  • Vehicle Fitment: Compatible with various Subaru Legacy BP9 models, including GT and naturally aspirated versions.
  • Improved Balance: Helps reduce understeer for a more neutral handling profile.
  • Construction: High-grade steel for durability and consistent performance under stress.

A rear sway bar is one of the most effective ways to tune the handling of your Subaru. By increasing the rear roll stiffness, this Cusco bar helps the car rotate more effectively through corners, giving you better control and a more athletic feel. It is a direct replacement for the factory bar, making installation straightforward for those looking to improve their vehicle's dynamics without complex modifications. Whether you are looking to sharpen your turn-in or simply want a more planted feel during daily driving, this 21mm rear sway bar is an essential component. Trust in Cusco's decades of racing heritage to provide the performance you need. Discover the full range of suspension upgrades for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2005 Subaru Legacy GT Limited
2005 Subaru Legacy i
2005 Subaru Legacy Limited
2005-2006 Subaru Legacy GT
2006-2009 Subaru Legacy 2.5i
2006-2009 Subaru Legacy GT spec.B
2007-2009 Subaru Legacy 2.5i Limited
2007-2009 Subaru Legacy 2.5i Special Edition
2008-2009 Subaru Legacy 3.0 R Limited
2009 Subaru Legacy 3.0 R

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

Sharpen Your Handling with Cusco 21mm Rear Sway Bar

Take control of your Subaru Legacy's handling with the Cusco Rear Sway Bar (21mm). This performance-oriented upgrade is designed to minimize body roll and improve the overall balance of your vehicle, providing a more responsive and engaging driving experience on both the street and the track.

Key Advantages:

  • Optimized Diameter: 21mm thickness provides the perfect balance of stiffness and compliance.
  • Vehicle Fitment: Compatible with various Subaru Legacy BP9 models, including GT and naturally aspirated versions.
  • Improved Balance: Helps reduce understeer for a more neutral handling profile.
  • Construction: High-grade steel for durability and consistent performance under stress.

A rear sway bar is one of the most effective ways to tune the handling of your Subaru. By increasing the rear roll stiffness, this Cusco bar helps the car rotate more effectively through corners, giving you better control and a more athletic feel. It is a direct replacement for the factory bar, making installation straightforward for those looking to improve their vehicle's dynamics without complex modifications. Whether you are looking to sharpen your turn-in or simply want a more planted feel during daily driving, this 21mm rear sway bar is an essential component. Trust in Cusco's decades of racing heritage to provide the performance you need. Discover the full range of suspension upgrades for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2005 Subaru Legacy GT Limited
2005 Subaru Legacy i
2005 Subaru Legacy Limited
2005-2006 Subaru Legacy GT
2006-2009 Subaru Legacy 2.5i
2006-2009 Subaru Legacy GT spec.B
2007-2009 Subaru Legacy 2.5i Limited
2007-2009 Subaru Legacy 2.5i Special Edition
2008-2009 Subaru Legacy 3.0 R Limited
2009 Subaru Legacy 3.0 R

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

Sharpen Your Handling with Cusco 21mm Rear Sway Bar

Take control of your Subaru Legacy's handling with the Cusco Rear Sway Bar (21mm). This performance-oriented upgrade is designed to minimize body roll and improve the overall balance of your vehicle, providing a more responsive and engaging driving experience on both the street and the track.

Key Advantages:

  • Optimized Diameter: 21mm thickness provides the perfect balance of stiffness and compliance.
  • Vehicle Fitment: Compatible with various Subaru Legacy BP9 models, including GT and naturally aspirated versions.
  • Improved Balance: Helps reduce understeer for a more neutral handling profile.
  • Construction: High-grade steel for durability and consistent performance under stress.

A rear sway bar is one of the most effective ways to tune the handling of your Subaru. By increasing the rear roll stiffness, this Cusco bar helps the car rotate more effectively through corners, giving you better control and a more athletic feel. It is a direct replacement for the factory bar, making installation straightforward for those looking to improve their vehicle's dynamics without complex modifications. Whether you are looking to sharpen your turn-in or simply want a more planted feel during daily driving, this 21mm rear sway bar is an essential component. Trust in Cusco's decades of racing heritage to provide the performance you need. Discover the full range of suspension upgrades for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2005 Subaru Legacy GT Limited
2005 Subaru Legacy i
2005 Subaru Legacy Limited
2005-2006 Subaru Legacy GT
2006-2009 Subaru Legacy 2.5i
2006-2009 Subaru Legacy GT spec.B
2007-2009 Subaru Legacy 2.5i Limited
2007-2009 Subaru Legacy 2.5i Special Edition
2008-2009 Subaru Legacy 3.0 R Limited
2009 Subaru Legacy 3.0 R

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