The fine Iridium tip ensures high durability and a consistently stable spark. Iridium alloy has 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.
These are one step colder plugs and are recommended for higher horsepower applications. A higher heat range number does not improve engine performance it increases the plugs ability to dissipate heat. Fine Wire Center Electrode Ensures High Durability and a Consistently Stable Spark Iridium Alloy has an Extremely High Melting Point, Perfect for Today's High-Tech, High Performance Engines Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties Corrugated Ribs Prevent Flashover Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer Copper Core Aids in Heat Removal Triple Seals Prevent Leakage
Shorty Spark Plug : No Resistor : Yes Manufacturer Heat Range : 7 Electrode Core Material : Copper Electrode Tip Material : Iridium Insulator Type : Projected Spark Plug Thread Size : 14mm Spark Plug Reach : 1.043 in. Spark Plug Seat Style : Gasket Wrench Diameter : 5/8 in. Ground Strap Quantity : One NGK Part Number : LFR7AIX