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The NGK Racing spark plug is built for extreme use and high-demand motorsports applications. Special center electrode configurations and insulator nose shapes improve ignitability and throttle response while promoting durability under severe conditions. Pure alumina silicate ceramic insulator enhances dielectric strength, and a 98% pure copper core helps with heat removal. Trivalent metal plating and triple seals reduce corrosion and leakage risk for more consistent race-weekend performance. Supplied in a box of 4.
NGK Racing Spark Plug Box of 4 (R0406A-9)
