| NGK R5672A-9 set of 4 |
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Racing plug, 14mm, 3/4" reach, 5/8" hex, gasket seat, Non Projected Tip, non resistor, V-power (v-grooved center electrode) The NGK #7405 R5672A-9 is a NON Resistor Race plug. Using Non Resistor plugs can allow Ignition Noise to creep into your Radio system and other Electronics. When you increase power in your vehicle you need to use a colder plug to deter detonation and help pull heat out of the combustion chamber. NGK recommends one range colder for every 75HP-100HP increase. Non Projected Tip for high boost and or Nitrous Applications Or using Ethanol! |
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