ACT Flywheel Counterweight — Fits 2004-2011 Mazda RX-8

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SKU: ACTCW03
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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 ACT

ACT engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACT lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACT Flywheel Counterweight for Mazda RX-8

Enhance the performance and longevity of your Mazda RX-8's drivetrain with the ACT Flywheel Counterweight (SKU: ACTCW03). Engineered for precision and reliability, this counterweight is designed to ensure smooth operation and reduce stress on critical engine components.

Key Benefits:

  • Smooth Operation: Contributes to a smoother running engine by properly balancing rotating mass.
  • Extended Engine Life: Reduces load on bearings, helping to prolong the life of your engine.
  • Precision Machining: Manufactured to tight tolerances for minimal balancing adjustment and optimal performance.
  • Recommended Use: Designed to work seamlessly with ACT flywheels for a complete performance upgrade.
  • Durable Construction: Built to withstand the demands of daily driving and performance use.

Vehicle Fitment:

This ACT Flywheel Counterweight is specifically designed for the following Mazda RX-8 models:

  • 2004-2007 Mazda RX-8 Base
  • 2005 Mazda RX-8 Shinka
  • 2008 Mazda RX-8 40th Anniversary Edition
  • 2008-2011 Mazda RX-8 Grand Touring
  • 2008-2011 Mazda RX-8 Sport
  • 2008-2009 Mazda RX-8 Touring
  • 2009-2011 Mazda RX-8 R3

Invest in quality and performance with this essential drivetrain component from ACT. Ensure your RX-8 runs at its best by choosing parts designed for optimal function and durability. Find this and other high-quality performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2007 Mazda RX-8 Base
2005 Mazda RX-8 Shinka
2008 Mazda RX-8 40th Anniversary Edition
2008-2009 Mazda RX-8 Touring
2008-2011 Mazda RX-8 Grand Touring
2008-2011 Mazda RX-8 Sport
2009-2011 Mazda RX-8 R3

Product Details

Product Description
Part Numbers
Sizing & Fit

About ACT

ACT engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACT lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACT Flywheel Counterweight for Mazda RX-8

Enhance the performance and longevity of your Mazda RX-8's drivetrain with the ACT Flywheel Counterweight (SKU: ACTCW03). Engineered for precision and reliability, this counterweight is designed to ensure smooth operation and reduce stress on critical engine components.

Key Benefits:

  • Smooth Operation: Contributes to a smoother running engine by properly balancing rotating mass.
  • Extended Engine Life: Reduces load on bearings, helping to prolong the life of your engine.
  • Precision Machining: Manufactured to tight tolerances for minimal balancing adjustment and optimal performance.
  • Recommended Use: Designed to work seamlessly with ACT flywheels for a complete performance upgrade.
  • Durable Construction: Built to withstand the demands of daily driving and performance use.

Vehicle Fitment:

This ACT Flywheel Counterweight is specifically designed for the following Mazda RX-8 models:

  • 2004-2007 Mazda RX-8 Base
  • 2005 Mazda RX-8 Shinka
  • 2008 Mazda RX-8 40th Anniversary Edition
  • 2008-2011 Mazda RX-8 Grand Touring
  • 2008-2011 Mazda RX-8 Sport
  • 2008-2009 Mazda RX-8 Touring
  • 2009-2011 Mazda RX-8 R3

Invest in quality and performance with this essential drivetrain component from ACT. Ensure your RX-8 runs at its best by choosing parts designed for optimal function and durability. Find this and other high-quality performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2007 Mazda RX-8 Base
2005 Mazda RX-8 Shinka
2008 Mazda RX-8 40th Anniversary Edition
2008-2009 Mazda RX-8 Touring
2008-2011 Mazda RX-8 Grand Touring
2008-2011 Mazda RX-8 Sport
2009-2011 Mazda RX-8 R3

Product Details

Product Description

About ACT

ACT engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACT lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACT Flywheel Counterweight for Mazda RX-8

Enhance the performance and longevity of your Mazda RX-8's drivetrain with the ACT Flywheel Counterweight (SKU: ACTCW03). Engineered for precision and reliability, this counterweight is designed to ensure smooth operation and reduce stress on critical engine components.

Key Benefits:

  • Smooth Operation: Contributes to a smoother running engine by properly balancing rotating mass.
  • Extended Engine Life: Reduces load on bearings, helping to prolong the life of your engine.
  • Precision Machining: Manufactured to tight tolerances for minimal balancing adjustment and optimal performance.
  • Recommended Use: Designed to work seamlessly with ACT flywheels for a complete performance upgrade.
  • Durable Construction: Built to withstand the demands of daily driving and performance use.

Vehicle Fitment:

This ACT Flywheel Counterweight is specifically designed for the following Mazda RX-8 models:

  • 2004-2007 Mazda RX-8 Base
  • 2005 Mazda RX-8 Shinka
  • 2008 Mazda RX-8 40th Anniversary Edition
  • 2008-2011 Mazda RX-8 Grand Touring
  • 2008-2011 Mazda RX-8 Sport
  • 2008-2009 Mazda RX-8 Touring
  • 2009-2011 Mazda RX-8 R3

Invest in quality and performance with this essential drivetrain component from ACT. Ensure your RX-8 runs at its best by choosing parts designed for optimal function and durability. Find this and other high-quality performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2007 Mazda RX-8 Base
2005 Mazda RX-8 Shinka
2008 Mazda RX-8 40th Anniversary Edition
2008-2009 Mazda RX-8 Touring
2008-2011 Mazda RX-8 Grand Touring
2008-2011 Mazda RX-8 Sport
2009-2011 Mazda RX-8 R3

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