654 — Racing Spark Plug

• EXCEPTIONAL COMBUSTION & STRENGTH -- Delivers rapid, consistent combustion and withstands the intense mechanical forces of racing environments
• HIGH-STRENGTH CERAMIC INSULATOR -- High-strength ceramic formulation resists dielectric puncture and maintains consistent voltage under extreme ignition loads
• HANDLES EXTREME HEAT & PRESSURE -- Maintains spark integrity and structural stability during sustained high-RPM, high-heat operation
• RACE-TUNED HEAT RANGE CONTROL -- Correct heat range selection helps control plug temperature, prevent pre-ignition and maintain maximum power throughout the race
• CORROSION RESISTANCE -- Coated shell provides corrosion resistance in harsh environments
• PROJECTED SURFACE-GAP DESIGN -- Positions the spark deeper in the combustion chamber to improve flame initiation and manage gap growth over race duration

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