What's the best spark plug to use in the V?
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Cadillac STS-V Series Forum Discussion, What's the best spark plug to use in the V? in Cadillac V-Series Forums; Listed to fit are several irridium, platinum and a yttrium brand....
  1. #1
    hiltonny is offline Cadillac Owners Member
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    What's the best spark plug to use in the V?

    Listed to fit are several irridium, platinum and a yttrium brand.

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  3. #2
    Psycho-albanian is offline Cadillac Owners Fanatic
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    Re: What's the best spark plug to use in the V?

    Ngk tr6 or tr7 copper plugs are the best.

  4. #3
    TimmyC is offline Cadillac Owners Connoisseur
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    Re: What's the best spark plug to use in the V?

    or tr6ix if you want the iridium. tr7ix for non stock boost

  5. #4
    todrules is offline Cadillac Owners Fanatic
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    Re: What's the best spark plug to use in the V?

    Quote Originally Posted by TimmyC View Post
    or tr6ix if you want the iridium. tr7ix for non stock boost
    I just put in tr7ix, that's what was recommended by NGK. Since my car is not useable waiting for my replacement or "reconditioned" Optima battery I was thinking of pulling my blower snout right away. Should I do injectors right away Tim?

  6. #5
    TimmyC is offline Cadillac Owners Connoisseur
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    Re: What's the best spark plug to use in the V?

    Quote Originally Posted by todrules View Post
    I just put in tr7ix, that's what was recommended by NGK. Since my car is not useable waiting for my replacement or "reconditioned" Optima battery I was thinking of pulling my blower snout right away. Should I do injectors right away Tim?
    You might as well do injectors now if you plan on power upgrades. Tuning is required for injectors as you probably already know.

    My core snout is out right now but I can machine yours and send it right back out the same day I get it if you want to do that. Email me at t_coel@yahoo.com.

  7. #6
    boomys10 is offline Cadillac Owners Enthusiast
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    Re: What's the best spark plug to use in the V?

    I put tr6 copper in mine and have good luck with them. they are only 16 to replace them all, granted I have to do it every couple months but great results.

  8. #7
    1madstsv's Avatar
    1madstsv is offline Cadillac Owners Connoisseur
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    Re: What's the best spark plug to use in the V?

    I ran tr7ix in my 06 and im running tr6ix in the 08 good plugs can't go wrong.

  9. #8
    AriGold. is offline Cadillac Owners Fanatic
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    Quote Originally Posted by 1madstsv View Post
    I ran tr7ix in my 06 and im running tr6ix in the 08 good plugs can't go wrong.
    What he said but u have them in my 06

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