NGK Iridium Spark Plugs One Step Colder 2667 - 2002-2005 Subaru WRX

HIGHLIGHTS: One-step colder is ideal for those of you with mild to moderate upgrades and increased boost levels Iridium technology for longevity, and a smoother running operation  Sold as a complete set of (4) spark plugs NGK Iridium Spark Plugs One Step Colder 2667 SPECS: Model - 2667 Heat range - 7 Plug gap - .030 Iridium IX type The Iridium tip ensures high durability and a consistently stable spark The Iridium alloy has an extremely high melting point, perfect for today's high-tech, high-performance engines Trivalent Metal Plating - superior anti-corrosion and anti-seizing properties Outstanding acceleration, high fuel efficiency, and durability Ultimate design, technology, and performance Sold as a set of (4) spark plugs   FITMENT NOTE: The NGK BKR7EIX will fit the 2002-2005 Subaru WRX 2.0L  These are one-step colder plugs and are recommended for higher horsepower applications  A higher heat range number does not improve