ACT Streetlite XACT Flywheel — Fits 2012-2015 Honda Civic Si

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SKU: ACT600780
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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 Streetlite XACT Flywheel for Honda Civic Si

Elevate the performance of your 2012-2015 Honda Civic Si with the ACT Streetlite XACT Flywheel. This performance upgrade is designed to deliver a noticeable improvement in engine response and acceleration, making your Civic Si feel more dynamic and engaging to drive. Suitable for both street and track use, this flywheel offers a balanced approach to performance enhancement, with OE to mild gear rattle as a characteristic of its sporty nature.

Performance and Reliability Combined:

  • Enhanced Acceleration: Experience a significant boost in acceleration and quicker engine revs.
  • Improved Throttle Response: Enjoy a more direct and responsive connection between your throttle input and engine output.
  • Durable Forging: Constructed from heat-treated forgings for superior strength and resistance to wear.
  • Induction-Hardened Ring Gears: Ensures maximum durability and longevity for the critical ring gear component.
  • One-Piece Design: This integrated design prevents insert failures and promotes uniform heat transfer, reducing the risk of clutch disc warping.
  • Street and Race Ready: Perfectly suited for daily driving and demanding track conditions.
  • Precision Balanced: Forged, CNC machined, and computer balanced for smooth, high-RPM operation.

This ACT Streetlite XACT Flywheel is specifically designed to fit the 2012-2015 Honda Civic Si models. It also fits various Honda Accord and Acura TSX models, offering broader compatibility. Enhance your Civic Si's performance and driving dynamics with this premium component from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2013-2015 Acura ILX Base
2009-2011 Acura TSX Base
2012-2014 Acura TSX Special Edition
2003-2005 Honda Accord DX
2003-2012 Honda Accord EX
2003-2012 Honda Accord LX
2005 Honda Accord SE
2006 Honda Accord LX Special Edition
2006-2007 Honda Accord Value Package
2007 Honda Accord Special Edition
2008-2012 Honda Accord LX-S
2008-2012 Honda Accord EX-L
2012-2015 Honda Civic Si

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 Streetlite XACT Flywheel for Honda Civic Si

Elevate the performance of your 2012-2015 Honda Civic Si with the ACT Streetlite XACT Flywheel. This performance upgrade is designed to deliver a noticeable improvement in engine response and acceleration, making your Civic Si feel more dynamic and engaging to drive. Suitable for both street and track use, this flywheel offers a balanced approach to performance enhancement, with OE to mild gear rattle as a characteristic of its sporty nature.

Performance and Reliability Combined:

  • Enhanced Acceleration: Experience a significant boost in acceleration and quicker engine revs.
  • Improved Throttle Response: Enjoy a more direct and responsive connection between your throttle input and engine output.
  • Durable Forging: Constructed from heat-treated forgings for superior strength and resistance to wear.
  • Induction-Hardened Ring Gears: Ensures maximum durability and longevity for the critical ring gear component.
  • One-Piece Design: This integrated design prevents insert failures and promotes uniform heat transfer, reducing the risk of clutch disc warping.
  • Street and Race Ready: Perfectly suited for daily driving and demanding track conditions.
  • Precision Balanced: Forged, CNC machined, and computer balanced for smooth, high-RPM operation.

This ACT Streetlite XACT Flywheel is specifically designed to fit the 2012-2015 Honda Civic Si models. It also fits various Honda Accord and Acura TSX models, offering broader compatibility. Enhance your Civic Si's performance and driving dynamics with this premium component from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2013-2015 Acura ILX Base
2009-2011 Acura TSX Base
2012-2014 Acura TSX Special Edition
2003-2005 Honda Accord DX
2003-2012 Honda Accord EX
2003-2012 Honda Accord LX
2005 Honda Accord SE
2006 Honda Accord LX Special Edition
2006-2007 Honda Accord Value Package
2007 Honda Accord Special Edition
2008-2012 Honda Accord LX-S
2008-2012 Honda Accord EX-L
2012-2015 Honda Civic Si

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 Streetlite XACT Flywheel for Honda Civic Si

Elevate the performance of your 2012-2015 Honda Civic Si with the ACT Streetlite XACT Flywheel. This performance upgrade is designed to deliver a noticeable improvement in engine response and acceleration, making your Civic Si feel more dynamic and engaging to drive. Suitable for both street and track use, this flywheel offers a balanced approach to performance enhancement, with OE to mild gear rattle as a characteristic of its sporty nature.

Performance and Reliability Combined:

  • Enhanced Acceleration: Experience a significant boost in acceleration and quicker engine revs.
  • Improved Throttle Response: Enjoy a more direct and responsive connection between your throttle input and engine output.
  • Durable Forging: Constructed from heat-treated forgings for superior strength and resistance to wear.
  • Induction-Hardened Ring Gears: Ensures maximum durability and longevity for the critical ring gear component.
  • One-Piece Design: This integrated design prevents insert failures and promotes uniform heat transfer, reducing the risk of clutch disc warping.
  • Street and Race Ready: Perfectly suited for daily driving and demanding track conditions.
  • Precision Balanced: Forged, CNC machined, and computer balanced for smooth, high-RPM operation.

This ACT Streetlite XACT Flywheel is specifically designed to fit the 2012-2015 Honda Civic Si models. It also fits various Honda Accord and Acura TSX models, offering broader compatibility. Enhance your Civic Si's performance and driving dynamics with this premium component from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2013-2015 Acura ILX Base
2009-2011 Acura TSX Base
2012-2014 Acura TSX Special Edition
2003-2005 Honda Accord DX
2003-2012 Honda Accord EX
2003-2012 Honda Accord LX
2005 Honda Accord SE
2006 Honda Accord LX Special Edition
2006-2007 Honda Accord Value Package
2007 Honda Accord Special Edition
2008-2012 Honda Accord LX-S
2008-2012 Honda Accord EX-L
2012-2015 Honda Civic Si

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