spitfire plugs Options

[rocky2006]

these any good? are they worth buying?

[rocky2006]

so are getting new plugs a waste of money or just the other ignition stuff?

[Kwanza26]

so are getting new plugs a waste of money or just the other ignition stuff?
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If your car isn't running really good and could use a tune up... then it will make the car run better. Getting the most expensive spark plug, hottest baddest ignition wires, etc... isn't gonna increase performance over stock. It'll just perform more efficiently than the old stuff... but that's not to say it'll be better than new "cheap" stuff.

What I'm saying is, if your engine is stock, your induction is relatively stock (intake or whatever), upgrading (if you want to call it that) spark plugs to so-called "V-Power" or "Iridium" or "spitfire" isn't gonna increase overall performance. It'll improve performance if your current plugs are worn or something, but it will not exceed factory output unless your engine has some significant modifications. Same goes with almost all other ignition "upgrades". Just one word of advice... stick with the Japanese brands and the reccomended range for your car. Either NGK or Denso plugs. Nothing against Bosch plugs or the guys who run it, but Bosch plugs are more-or-less not specifically designed for, or shall I say, our engines are not designed for Bosch plugs. I've seen some funky results on Japanese cars running non-Japanese spark plugs...