NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. ACURA 2003-92; BMW 1997-88; CHRYS 2014-07; DODGE 2014-94; HON 2005-90; HYUNDAI 2011-06; ISUZU 1999-96; JEEP 2014-07; KIA 2011-08; MAZDA 2003-90; MITSUBISHI 2007-06

RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
Pure alumina silicate ceramic insulator provides superior strength and better heat transfer
Trivalent metal plating for superior anti-corrosion and anti-seizing properties
Copper core aids in heat removal
Triple seals prevent leakage

The NGK Iridium IX Spark Plugs (Part Number 2477) are engineered for high-performance vehicles and enthusiasts seeking reliable ignition and enhanced engine efficiency. Featuring a tapered cut ground electrode, these plugs deliver improved starting, smoother idling, and quicker throttle response. The iridium fine wire center electrode is six times harder than platinum, ensuring exceptional durability and consistent performance over extended use. The high melting point of iridium alloy allows these plugs to withstand the demanding conditions of modern engines. Designed for modified and high-performance applications, they are an excellent upgrade from standard nickel alloy spark plugs, providing outstanding acceleration and fuel efficiency.
NGK Iridium IX plugs incorporate a pure alumina silicate ceramic insulator that offers superior strength and optimal heat transfer. The trivalent metal plating enhances anti-corrosion and anti-seizing properties, making installation and removal easier while ensuring long-term performance. The copper core aids in efficient heat removal, preventing overheating and maintaining optimal operating temperatures. Triple seals ensure a secure fit and prevent any leakage, contributing to overall reliability. Suitable for a range of vehicles including Honda, Acura, BMW, Dodge, Hyundai, Isuzu, Jeep, Kia, Mazda, and Mitsubishi, these plugs are a versatile choice for various engine types and conditions.
Whether you're upgrading your vehicle for improved performance or replacing worn-out spark plugs, NGK Iridium IX Spark Plugs offer an excellent combination of durability, ignitability, and efficiency. Ideal for 1991-1995 Honda Civics and 1991 Honda Preludes, they are designed to meet the demands of both daily driving and spirited driving experiences. Invest in these high-quality spark plugs to ensure your engine starts reliably, runs smoothly, and maintains peak performance over time.

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