GSC Power Division Valve Seat Set OEM Replacement — Fits Subaru EJ205 EJ257

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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 GSC Power Division

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

Watch in action

Restore Your Subaru EJ Engine Performance

Keep your Subaru EJ205, EJ207, or EJ257 engine running at its peak with the GSC Power Division Valve Seat Set. These OEM replacement valve seats are engineered to provide a perfect seal, which is essential for maintaining compression and preventing power loss in turbocharged Subaru applications. If you are rebuilding your cylinder heads, replacing the valve seats is a vital step to ensure long-term reliability and consistent performance.

Key Features

  • Engine Compatibility: Specifically designed for EJ205, EJ207, and EJ257 engines
  • Precision Engineering: Meets or exceeds OEM standards for fitment and function
  • Heat Resistance: Built to withstand the high temperatures of turbocharged Subaru engines
  • Reliable Performance: Ensures consistent valve seating for improved combustion efficiency

GSC Power Division is renowned for its high-quality valvetrain components, and these valve seats are no exception. They are the preferred choice for enthusiasts looking to maintain the power and reliability of their WRX, STI, or other EJ-powered vehicles. From the Saab 9-2X Aero to the iconic Impreza WRX STI, these seats provide the durability needed for both daily driving and spirited performance. When it comes to engine internals, don't settle for anything less than the best. Upgrade your Subaru today with parts from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2005 Saab 9-2X Aero
1999-2001 Subaru Impreza L
1999-2004 Subaru Impreza Outback
1999-2005 Subaru Impreza RS
2002-2004 Subaru Impreza TS
2002-2014 Subaru Impreza WRX
2004-2014 Subaru Impreza WRX STI
2006-2007 Subaru Impreza WRX TR
2006-2007 Subaru Impreza WRX Limited
2006-2011 Subaru Impreza 2.5i
2007 Subaru Impreza WRX STI Limited
2009-2010 Subaru Impreza 2.5 GT
2009-2014 Subaru Impreza WRX Premium
2010 Subaru Impreza WRX STI Special Edition
2010-2011 Subaru Impreza 2.5i Premium
2011-2014 Subaru Impreza WRX STI Limited
2012-2014 Subaru Impreza Base
2012-2014 Subaru Impreza Limited
2012-2014 Subaru Impreza Premium
2012-2014 Subaru Impreza Sport Limited
2012-2014 Subaru Impreza Sport Premium
2015 Subaru WRX STI Base
2015 Subaru WRX STI Limited

Product Details

Product Description
Part Numbers
Sizing & Fit

About GSC Power Division

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

Watch in action

Restore Your Subaru EJ Engine Performance

Keep your Subaru EJ205, EJ207, or EJ257 engine running at its peak with the GSC Power Division Valve Seat Set. These OEM replacement valve seats are engineered to provide a perfect seal, which is essential for maintaining compression and preventing power loss in turbocharged Subaru applications. If you are rebuilding your cylinder heads, replacing the valve seats is a vital step to ensure long-term reliability and consistent performance.

Key Features

  • Engine Compatibility: Specifically designed for EJ205, EJ207, and EJ257 engines
  • Precision Engineering: Meets or exceeds OEM standards for fitment and function
  • Heat Resistance: Built to withstand the high temperatures of turbocharged Subaru engines
  • Reliable Performance: Ensures consistent valve seating for improved combustion efficiency

GSC Power Division is renowned for its high-quality valvetrain components, and these valve seats are no exception. They are the preferred choice for enthusiasts looking to maintain the power and reliability of their WRX, STI, or other EJ-powered vehicles. From the Saab 9-2X Aero to the iconic Impreza WRX STI, these seats provide the durability needed for both daily driving and spirited performance. When it comes to engine internals, don't settle for anything less than the best. Upgrade your Subaru today with parts from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2005 Saab 9-2X Aero
1999-2001 Subaru Impreza L
1999-2004 Subaru Impreza Outback
1999-2005 Subaru Impreza RS
2002-2004 Subaru Impreza TS
2002-2014 Subaru Impreza WRX
2004-2014 Subaru Impreza WRX STI
2006-2007 Subaru Impreza WRX TR
2006-2007 Subaru Impreza WRX Limited
2006-2011 Subaru Impreza 2.5i
2007 Subaru Impreza WRX STI Limited
2009-2010 Subaru Impreza 2.5 GT
2009-2014 Subaru Impreza WRX Premium
2010 Subaru Impreza WRX STI Special Edition
2010-2011 Subaru Impreza 2.5i Premium
2011-2014 Subaru Impreza WRX STI Limited
2012-2014 Subaru Impreza Base
2012-2014 Subaru Impreza Limited
2012-2014 Subaru Impreza Premium
2012-2014 Subaru Impreza Sport Limited
2012-2014 Subaru Impreza Sport Premium
2015 Subaru WRX STI Base
2015 Subaru WRX STI Limited

Product Details

Product Description

About GSC Power Division

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

Watch in action

Restore Your Subaru EJ Engine Performance

Keep your Subaru EJ205, EJ207, or EJ257 engine running at its peak with the GSC Power Division Valve Seat Set. These OEM replacement valve seats are engineered to provide a perfect seal, which is essential for maintaining compression and preventing power loss in turbocharged Subaru applications. If you are rebuilding your cylinder heads, replacing the valve seats is a vital step to ensure long-term reliability and consistent performance.

Key Features

  • Engine Compatibility: Specifically designed for EJ205, EJ207, and EJ257 engines
  • Precision Engineering: Meets or exceeds OEM standards for fitment and function
  • Heat Resistance: Built to withstand the high temperatures of turbocharged Subaru engines
  • Reliable Performance: Ensures consistent valve seating for improved combustion efficiency

GSC Power Division is renowned for its high-quality valvetrain components, and these valve seats are no exception. They are the preferred choice for enthusiasts looking to maintain the power and reliability of their WRX, STI, or other EJ-powered vehicles. From the Saab 9-2X Aero to the iconic Impreza WRX STI, these seats provide the durability needed for both daily driving and spirited performance. When it comes to engine internals, don't settle for anything less than the best. Upgrade your Subaru today with parts from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2005 Saab 9-2X Aero
1999-2001 Subaru Impreza L
1999-2004 Subaru Impreza Outback
1999-2005 Subaru Impreza RS
2002-2004 Subaru Impreza TS
2002-2014 Subaru Impreza WRX
2004-2014 Subaru Impreza WRX STI
2006-2007 Subaru Impreza WRX TR
2006-2007 Subaru Impreza WRX Limited
2006-2011 Subaru Impreza 2.5i
2007 Subaru Impreza WRX STI Limited
2009-2010 Subaru Impreza 2.5 GT
2009-2014 Subaru Impreza WRX Premium
2010 Subaru Impreza WRX STI Special Edition
2010-2011 Subaru Impreza 2.5i Premium
2011-2014 Subaru Impreza WRX STI Limited
2012-2014 Subaru Impreza Base
2012-2014 Subaru Impreza Limited
2012-2014 Subaru Impreza Premium
2012-2014 Subaru Impreza Sport Limited
2012-2014 Subaru Impreza Sport Premium
2015 Subaru WRX STI Base
2015 Subaru WRX STI Limited

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