NGK Laser Iridium Spark Plug Box of 4 (ILZKR7B11) 2017-bmw-i8-esi5149508 The SP series of cold

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NGK Laser Iridium Spark Plug Box of 4 (ILZKR7B11) 2017-bmw-i8-esi5149508 The SP series of coldNGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts.