NGK IFR5E11 7994 Spark Plug Iridium

The NGK IFR5E11 7994 Iridium Spark Plug is engineered for performance and longevity in 14mm diameter ignition systems. Featuring a fine iridium alloy center electrode, it delivers a precise, consistent spark with reduced wear and improved ignitability across a wide temperature range. This results in smoother idle, quicker cold starts, and enhanced throttle response while helping to maximize fuel efficiency and engine power. The robust construction provides excellent resistance to corrosion and fouling, making it a reliable choice for daily drivers and performance enthusiasts alike. Whether you’re tuning a modern daily driver or upgrading a high-performance build, the IFR5E11 7994 is designed to maintain peak combustion efficiency over a longer service life.