NGK Iridium Spark Plugs


NGK iridium spark plug set for Gen 4 Vipers in multiple heat ranges depending on your application:

5 Heat range: Stock or mild mods

6 Heat range: Full bolt ons naturally aspirated, (with or without heads/cam) or mild forced induction/N20

7 Heat range: Forced Induction 8+ psi or N20 125+hp

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Additional information

Weight 2 lbs
Dimensions 5 × 5 × 3 in


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