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The NGK Racing spark plug is purpose-built for extreme racing conditions where durability and ignitability are essential. Special center electrode designs and tailored insulator noses optimize spark delivery and throttle response across a range of heat ratings. These plugs are engineered to withstand harsh engine environments and frequent high-load use. Trivalent metal plating eases installation and resists corrosion. Supplied in a box of 4.
NGK Racing Spark Plug Box of 4 (R5670-9)
