COBB Spark Plugs EJ25 2004-2021 WRX, STI, Legacy, Forester, Outback | D44700

Upgrade your ignition system with the COBB EJ25 Spark Plug Set, designed for turbocharged Subaru EJ engines. Based on the factory spark plugs used in the 2018 Subaru WRX STI Type RA and 2019 Subaru WRX STI, these iridium plugs feature a one-step-colder heat range and a tighter factory gap, making them an excellent choice for modified, tuned, or higher-boost Subaru applications.

Whether you're performing routine maintenance or supporting additional horsepower, these genuine COBB spark plugs deliver reliable ignition performance and long service life.

Fitment:
Subaru STI (2004-2021)
Subaru WRX (2006-2014)
Subaru Legacy GT (2005-2009)
Subaru Forester XT (2004-2013)
Subaru Outback XT (2005-2009)

Features
- One-step-colder heat range
- Factory Type RA / 2019 STI specification
- Laser-welded iridium center electrode
- Trivalent metal plating for corrosion resistance
- Pre-gapped to 0.024" (0.6mm)
- Heat Range: 7
- Sold as a complete set of four

Specifications
Heat Range: 7
Gap: 0.024" (0.6mm)
Laser-Welded Iridium Center Electrode
Trivalent Metal Plating
Sold as a Set of 4