Colder Spark Plugs for 5.0L Supercharged
1 step colder spark plugs for Jaguar/Range Rover 5.0L Supercharged Engines. We recommend installing these on engines that have; our larger lower supercharger pulleys, Stage 2/Stage 3 power packages. These will help prevent any misfires under heavy load. NGK Iridium.
*Recommend gap for these plugs = 0.025″ for optimal performance.
*Quantity of 1 = 8 spark plugs.
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