Maximize your 2003 Subaru WRX with aftermarket parts designed for the GD chassis. The 2003 model offers classic EJ205 performance with extensive modification support.
2003 WRX Engine Modifications
The 2003 WRX's EJ205 2.0L turbocharged engine has proven modification capabilities. Key upgrades include cold air intakes, front-mount intercoolers, and custom tuning maps.
Popular 2003 WRX Performance Upgrades
Enhance your 2003 WRX with performance exhausts, coilover suspensions, and big brake kits. The comprehensive aftermarket provides solutions for every performance goal.
