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One Step Colder Spark Plugs for Higher Horsepower Applications Tailored for the performance enthusiast, NGK Iridium IX Spark Plugs provide a precision-engineered ignition solution for Subaru EJ25 Turbo Models, including 2004+ STI and 2006-2014 WRX. With extreme ignitability, improved throttle response, and superior anti-fouling properties, these spark plugs offer a seamless and effective ignition upgrade, enhancing the overall performance of your engine. QUICK SPECS: Extreme ignitability for peak performance Improved throttle response for a dynamic driving experience Superior anti-fouling properties ensure consistent ignition Fine Iridium tip ensures high durability and a stable spark Iridium alloy with an extremely high melting point for high-tech, high-performance EJ25 Subaru engines Trivalent metal plating for superior anti-corrosion and anti-seizing properties Outstanding acceleration, high fuel efficiency, and overall durability Ultimate design, technology, and performance TECH SPECS: Sold as a set of 4 Heat Range: 7 Plug Gap: .031" FITMENT: 2002-14 Subaru WRX 2004-21 Subaru STI 2004-13 Subaru Forester XT 2005-12 Subaru Legacy GT 2005-09 Subaru Outback XT
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🇺🇸 Ship from USA · On Agora since 2025
$33.80