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