NGK Racing Spark Plug *Box of 4* (R5672A-9) - 7405 Voltmeter Gauges It means more power due

It means more power due to the reduction in oil interfering with the rotation of the crank and allowing it to spin more freely

you lose about 1% of density for every 5 degrees Fahrenheit of increased temp

large underhead radius and rolled threads for the utmost in reliability

The kit includes an upper hose

The beautifully machined 6061 billet aluminum mount with zinc hardware will make you sad you have to hide it under your car

NGK Racing Spark Plug *Box of 4* (R5672A-9) - 7405 Voltmeter Gauges It means more power due**SOLD AS SET OF 4** NGK Racing spark plugs are designed with extreme use in mind and meant to withstand the most grueling racing conditions. NGK Spark Plugs have been powering racing champions and can be found in every racing venue throughout the world. The center electrode of the NGK Racing spark plugs has special configurations and designs to ensure durability and ignitability. NGK Racing plugs bring ultra high performance in a variety of heat