Iridium Tipped Spark Plug for Subaru 2.5L EJ Engines

The COBB Tuning D44700 spark plugs are official NGK one-step-colder heat range 7 iridium plugs. They are designed for Subaru 2.5L turbo EJ engines, commonly found in WRX, STI, Legacy GT, and Forester XT models. These plugs feature a laser-welded iridium-tipped center electrode, trivalent metal plating for durability, and a pre-set gap of 0.024" (0.6mm). They are typically offered as a set of four. These spark plugs are often included as part of COBB Tuning's NexGen Power Packages for various Subaru STI models, spanning years from 2008 through 2021, including specific packages for the 2018 Type RA. While these plugs are listed by COBB Tuning, some retailers indicate they must be purchased in conjunction with power packages.