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Are the tr55 plugs really better than stock?

This is a discussion on Are the tr55 plugs really better than stock? within the General Help forums, part of the LSx Technical Help Section category; I have installed the tr55 plugs in my TA twice since I had it and I am yet to notice ...

  1. #1
    Member
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    Oct 2005
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    pewter
    99 Trans Am

    Are the tr55 plugs really better than stock?

    I have installed the tr55 plugs in my TA twice since I had it and I am yet to notice any difference in the idle of performance.If there is no difference I might as well go back to stock and get more time out of the plugs.Have anybody truly noticed any idle or performance change?

  2. #2
    Retired NOT tired SteveC's Avatar
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    SOM
    2001 Z28 (Sara)

    They are copper tip plugs which conduct electricity better than platnum, however they do not last as long. It is all personal preference.

    I like to change my plugs every 2 years, because of the dissimilar (sp) metals between the plug, and the head.

    SteveC

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