The dual iridium spark plug has iridium emission pins and iridium grounding electrode inserts, which provide higher performance and four times longer lifespan compared to standard copper spark plugs
360 degree laser welding ultra-fine iridium ignition pin provides better flammability - reduces voltage requirements by up to 24% - and enhances durability
Nickel plated rolled threads provide excellent corrosion resistance without the need for anti sticking - making installation quick and convenient
The dual iridium spark plug has a gap reserved at the factory and can be installed out of the box - there is no need to adjust the gap before installation
Meets or exceeds the manufacturer's OE adaptation, form, and functional design requirements for modern gasoline engines - including gasoline direct injection (GDI) engines