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NGK Racing copper-core spark plugs combine race-focused electrode designs with proven copper-core heat removal for demanding applications. Strong alumina insulators, trivalent anti-corrosion plating and triple seals support durability and consistent ignition under stress. These plugs are built to withstand higher temperatures and provide reliable combustion in aggressive driving or competition settings.
NGK Copper Core Spark Plug Box of 4 (R5673-8)
