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2004-2007 Cadillac CTS-V Appearance Mods Discussion, spark plugs in Cadillac CTS-V Series Forum - 2004 - 2007; What spark plugs should I run?? Bolt on modz and a tune. Torquemaster? NGK? Bosche? Let me know what luck ...
  1. #1
    ranger2525's Avatar
    ranger2525 is offline Cadillac Owners Fanatic
    Automobile(s): 2005 cts-v,2003 escalade,2000 corvette conv. 1996 harley, 20
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    spark plugs

    What spark plugs should I run?? Bolt on modz and a tune. Torquemaster? NGK? Bosche? Let me know what luck you have had
    Purrdy pleeeeeese.

    ----------

    oops!!!! Wrong forum! Hope you will forgive me and move to the correct area.

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  3. #2
    CTSV_510's Avatar
    CTSV_510 is offline Cadillac Owners Master
    Automobile(s): '06 Z06, '05 CTS-V 453rwhp/434rwtq (sold)
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    Re: spark plugs

    For a stock motor the NGK TR-5s are the correct plug if you want copper. There is an iridium that is the TR5ix.

    I used NGK TR-55s on my stock motor (also work, slightly larger gap I believe).

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