Subaru WRX (GD/GG, 2002-2007)
| Years | 2002-2007 |
|---|---|
| Trims | WRX sedan (GD) and wagon (GG); WRX TR and WRX Limited added for 2006. STI (2004-07) is a separate model and only appears here where it is a parts donor. |
| Engine | 2002-2005 US: EJ205 2.0L turbo. 2006-2007 US: EJ255 2.5L turbo. |
| Notes | Three nose styles: 2002-03 'bugeye', 2004-05 'blobeye', 2006-07 'hawkeye'. US WRX uses 5x100 bolt pattern throughout. |
Generation facts are drawn from: Grassroots Motorsports (Feb 2009 issue), Radium Engineering (part manufacturer).
Known issues (overview)
- Cracked piston ring lands from detonation Confirmed
- Rod-bearing wear on the 2.0L EJ205 Confirmed
- Clogged oil-feed screens starving the turbo (P0011) Reported
- Timing belt is an interference-engine risk; 105k mi / 105 months Reported
- Stock transmission/clutch is the fuse under extra power Reported
- Worn synchros (3rd gear) and cold-shift shudder Reported
- Free-flowing downpipe can run 2004-05 WRX lean on stock tune Reported
- Early clutch hydraulic durability (restrictor valve added 2003) Reported
- Ticking/clicking under load is usually normal Reported
- Thin paint and thin sheet metal Reported
Best mods by goal
- Reliability (5)
- Cooling (1)
- Wheels & tires (2)
- Suspension (1)
- Brakes (1)
Will it fit?
| Part | Result | Years | Confidence |
|---|---|---|---|
| OEM 2002-2005 WRX wheel (16x6.5 +53) | Specification | 2002-2005 | Confirmed |
| OEM 2006-2007 WRX wheel (17x7 +55) | Specification | 2006-2007 | Confirmed |
| 2004 STI wheel (17x7.5 +53, 5x100) | Reported to fit | 2002-2007 | Confirmed |
| 2005-2007 STI wheel (17x8 +53, 5x114.3) | Does not fit | 2002-2007 | Confirmed |
| Aftermarket 5x100 / 56.1 mm wheels (BRZ/86-pattern) | Reported to fit | 2002-2007 | Reported |
| 2004-2007 STI front Brembo calipers | Fits with extra parts or work | 2002-2007 | Reported |
| 2004-2007 STI rear Brembo calipers | Fits with extra parts or work | 2002-2007 | Reported |
| DBA 2657 rear adapter rotor | Reported to fit | 2002-2007 | Limited |
| Subaru Legacy GT brakes | Fits with extra parts or work | 2002-2007 | Limited |
| Mishimoto top-mount intercooler kit | Reported to fit | 2002-2007 | Reported |
| Torque Solution top-mount intercooler | Fits with extra parts or work | 2002-2007 | Reported |
| Radium Engineering dual catch can kit | Reported to fit | 2002-2007 | Confirmed |
| 2008+ STI top-mount intercooler (OEM) | Fits with extra parts or work | 2002-2007 | Limited |
| EJ205-era turbocharger (TD04L family) | Unclear — details missing | 2006-2007 | Limited |
| WRX sedan 20 mm rear sway bar | Reported to fit | 2002-2007 | Reported |
| Factory skid plates from Impreza-based Outback Sport | Unclear — details missing | 2002-2007 | Limited |
| SKF VKMA 98115 timing belt kit (Subaru boxer DOHC) | Unclear — details missing | 2002-2007 | Limited |