These NGK iridium spark plugs are direct replacments for the OEM stock units. They are also available in one step colder for mildy modified cars. Sold Individually.
Use stock plugs for cars up to 300 wheel horsepower.
Use one step colder for cars exceeding 300 wheel horsepower.
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Good product and fast shipping
I've ordered many things from Tim and have yet to be let down! Spark plugs are great and fixed the stumble I had. Tim answered all my questions and shipped promptly, if you need gencoupe parts, tim is your guy !
Fast shipping on this product. This is the only place I could find what I was looking for. Installed these spark plugs and they helped with the horsepower increase from a tune I received.
These plugs were perfectly gapped for my application. Ten times better than the stock plugs.