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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.
The Subaru EJ series engine is a powerhouse, but it demands a reliable valve train to handle the heat and pressure of turbocharging. The GSC Power Division EJ Turbo Series Valve Spring Kit includes 16 precision-engineered springs designed to keep your engine running smoothly under aggressive driving conditions.
If you are upgrading your turbo, camshafts, or increasing your boost, the factory valve springs will quickly become the weak link in your engine. This GSC kit provides the increased seat pressure required to keep your valves closed under high boost, preventing power loss and potential engine failure. These springs are the result of extensive testing and are trusted by builders worldwide for their consistency and durability. Whether you are daily driving your WRX or competing on the track, this kit is an essential upgrade for any EJ engine build. Ensure your engine's longevity and performance with top-tier parts from GGCRACING.
| 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 |
Other popular GSC Power Division products customers consider together:
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.
The Subaru EJ series engine is a powerhouse, but it demands a reliable valve train to handle the heat and pressure of turbocharging. The GSC Power Division EJ Turbo Series Valve Spring Kit includes 16 precision-engineered springs designed to keep your engine running smoothly under aggressive driving conditions.
If you are upgrading your turbo, camshafts, or increasing your boost, the factory valve springs will quickly become the weak link in your engine. This GSC kit provides the increased seat pressure required to keep your valves closed under high boost, preventing power loss and potential engine failure. These springs are the result of extensive testing and are trusted by builders worldwide for their consistency and durability. Whether you are daily driving your WRX or competing on the track, this kit is an essential upgrade for any EJ engine build. Ensure your engine's longevity and performance with top-tier parts from GGCRACING.
| 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 |
Other popular GSC Power Division products customers consider together: