Quote:
Originally Posted by tower74
Umm 9 is not the heat it puts off . The higher the number the colder the plug. If you are buying "hot" plugs and putting them in a turbo charged car you are asking for problems. That's why when you turbocharge a car or supercharge a car the colder the plug the faster it releases heat from the cylinder chamber. Which is what you want when you are boosting like hell. Just saying....
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Hmmm I thought it was higher their number hotter the plug, I also thought the z came with 9, I guess that's why I thought higher was hotter.