Details
The plugs used by winning racers.
These NGK racing spark plugs use a iridium center electrode for the ultimate in performance.
They create a hotter spark, which means better combustion, and require a lower ignition firing voltage.
Racing spark plugs are great for high octane racing fuel, nitrous and supercharged applications.
Resistor No Manufacturer Heat Range 9 Electrode Core Material Copper Electrode Tip Material Nickel alloy Insulator Type Non-projected Spark Plug Thread Size 14mm Spark Plug Reach 0.750 in. Spark Plug Seat Style Gasket Wrench Diameter 5/8 in. Ground Strap Quantity One NGK Part Number R5671A-9 Quantity Sold individually.
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