Fitment Information:
- Subaru STI 2004-2021
- Subaru WRX 2006-2014
- Subaru Legcacy GT 2005-2009
- Subaru Forester XT 2004-2013
- Subaru Outback XT 2005-2009
This is the factory spark plug as installed in the 2018 Subaru WRX STI Type RA and 2019 Subaru WRX STI. The main differences are a heat range that is one-step cooler as well as a slightly tighter gap than previous factory spark plugs. These serve as a factory replacement for the 2018 STI Type RA and 2019 STI and a great upgrade for modified 2.5L Turbocharged Subarus.
Subaru 2.5L Spark Plugs WRX, STI, Legacy GT, Forester XT
- Laser Welded Iridium Tipped Center Electrode
- Trivalent Metal Plating
- .024 (.6mm) Gap
- Heat Range : 7
- Sold as Set of 4