Seller notes

NGK 4017 NGK Racing Spark Plug NGK 4017 Spark Plug Spark Plug FEATURES: DESIGNED FOR RACING: Surface discharge tip design built to withstand extreme heat and vibration RECOMMENDED USAGE: Racing use only NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges COLD-ROLLED THREADS: Prevents cross-threading and dama...

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