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  1. #1
    Junior Member
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    Oct 2005
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    houston, tx
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    Black
    1999 Camaro SS

    is it true that the ngk tr55's only last 20k miles?

    i am looking on mti's website cuz i'm bout to go get some new spark plugs but they only have the ngk tr5's (.035 gap) and tr55's (.055 gap). which ones should i get? and i need them to last a lot longer than 20k miles.
    1999 Camaro SS 6 Speed

  2. #2
    Senior Member greatwhiteZ28's Avatar
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    Nov 2006
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    d
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    white
    2002 z28

    just get the stock gap but if your looking for a great deal i got mine from ws6store.com for 70. with msd wires its a package or something.

    http://www.ws6project.com/user_stor/...34e134a9020708

  3. #3
    Senior Member INMY01TA's Avatar
    Join Date
    Jan 2006
    Location
    Marylandistan
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    5,761

    Black
    2001 Trans Am (sold)

    If you want plugs that'll last, get the tr55ix, they're iridium not copper.

  4. #4
    Junior Member
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    Oct 2005
    Location
    houston, tx
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    Black
    1999 Camaro SS

    okay i got the ac delco iridium so hopefully no more spark plugs changes for a while.

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