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  1. #1

    Default spark plugs gm parts

    just wondering if anyone has tried the bosch platinum + 4 plugs in there chevy yet? Or if they herd anything about them?

    GM Parts

  2. #2

    Default RE: spark plugs

    I have been a LONG TIME user of the plain-old Bosch platinums.
    Chevy Spark Plug

    My question is, how big does the spark have to be to ignight the fuel/air mixture? Isn't a small spark the same as the spark from a +4? I think it might be just marketing spit and polish.

    It looks pretty cool though.


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