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  1. #1
    Newbie sniz305 has not yet proved knowledgeable
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    Default spark plug question

    My girlfriend has an 04 elantra GLS and i recently put bosch +2 plugs in it replaced those crappy champion plugs and they looked crappy when i pulled them out. The guy at autozone told me that the bosch +2 were good for her car well the gas mileage went down bad on her car I also replaced the wires with the duralast brand like i did in my jeep wrangler.

    everyone says that NGK are the ones to use but i am not sure which ones to use. does anyone know i have read all that i can find in the search but no one ever mentions the 04 elantra only the 02 and 03 So does anyone know which ones to use

    thanks

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  3. #2
    Newbie Forever silet can identify a wrench
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    Default Re: spark plug question

    NGK V-Power BKR5E-11 Stock # 6953, Gap .039-.044, about $8. These do not last as long, but the price is right. The OEM Champions are platinum and NGK also has them.

    Keep an eye on the Duralast wires, because auto-store brands do not always fair well.

    I've used Bosch +2 for 40 K miles on my 03 with no problems.
    05 Tidal Wave GLS ---Lemon 02 Black GT --- RIP 03 Rally Red GT

  4. #3
    Newbie jkomp316 has not yet proved knowledgeable
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    Default Re: spark plug question

    i just got 29mpg out of my last tank, 103k on an 02 GLS, and I'm running the Bosch +2's. they work fine for me. maybe the wires are cheap. the plug is already higher resistance, if the wires are higher resistance too, could be a bad combo. Did you reset the ECU after the plug/wire change?

  5. #4
    EXD Pro Member BColeman knows a lot about Elantras
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    Default Re: spark plug question

    The wires are your problem. Double check them, I bet you'll find that they aren't connected to the plug that well. That happens after driving awhile.

    I personally don't like the Bosch spark plugs, as I've had problems on the performance side of things. Though a little bit more expensive, but worth every penny, I would go with the NGK Iridium IX's. Gas mileage can improve and performance is definitely there. If you need a new set of wires, I would buy a new set from the dealership, or search for Magnecor wires. They are expensive, but you won't lose MPG or performance.

    Follow me at Twitter - @BallisticTorch


  6. #5
    l33t haxx0r saturn has not yet proved knowledgeable saturn's Avatar
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    Default Re: spark plug question

    I switched from Champion to NGK Iridium and my MPG went up a bit. avoid parts store brand, you get what you pay for.

  7. #6
    Ninja Super Mod KeWLKaT knows a lot about Elantras KeWLKaT's Avatar
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    Default Re: spark plug question

    NO!

    NO MAGNECORE!!!

    I had those and my car was MISFIRING RANDOMLY (flashing CEL) until I put the stockers back on.

    '02 Elantra GT
    '04 Suzuki Katana 600

  8. #7
    EXD Pro Member zx2uner has not yet proved knowledgeable zx2uner's Avatar
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    Default Re: spark plug question

    You matter as well get NGK Spark plug wires while you're at it.
    Quote Originally Posted by SuperGLS View Post
    Thanks for being a knowitall Alex.

  9. #8
    Ninja Super Mod KeWLKaT knows a lot about Elantras KeWLKaT's Avatar
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    Default Re: spark plug question

    The only reason I never got those is because they come in blue (ricer in me) haha

    '02 Elantra GT
    '04 Suzuki Katana 600

  10. #9
    l33t haxx0r saturn has not yet proved knowledgeable saturn's Avatar
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    Default Re: spark plug question

    blue!??! oh I'm totally getting those now.

  11. #10
    EXD Pro Member zx2uner has not yet proved knowledgeable zx2uner's Avatar
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    Default Re: spark plug question

    Quote Originally Posted by KeWLKaT View Post
    The only reason I never got those is because they come in blue (ricer in me) haha
    I agree.....but I leave my cover on so you can't seem 'em anyway
    Quote Originally Posted by SuperGLS View Post
    Thanks for being a knowitall Alex.

  12. #11
    l33t haxx0r saturn has not yet proved knowledgeable saturn's Avatar
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    Default Re: spark plug question

    are there any retail stores that carry the NGK wires? autozone, advance and jegs all say no.

  13. #12
    Cheap & Frugal Member quickfingerz has not yet proved knowledgeable
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    Default Re: spark plug question

    rockauto.com is where i got mine. I still say you should wait until at least 100,000 miles before changing the wires.

    I am starting to think that plugs aren't going to make much of a difference. I ran v-powers for 20,000 miles with no problem. Now I'm running cheapo Autolite double platinums with no problems. I like double platinums because there's no gap erosion.

    NGK Power Iridiums are better than the IX's because of the platinum tipped ground electrode. These are stock on lots of cars now and they are not to be replaced until 100,000 miles and there's still no gap erosion.
    Front Damping (0.3m/s, exp/comp): (Tib KYB GR2-235/50) (Tib Ultrasports-209/57) (Elantra KYB GR2-130/40) (Elantra stock: 105/26)
    Rear Damping: (Tib KYB GR2-118/42) (Elantra KYB GR2-75/30)

  14. #13
    l33t haxx0r saturn has not yet proved knowledgeable saturn's Avatar
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    Default Re: spark plug question

    I replaced my old champion plugs that were eroded and black and had what looked like rust on the plug end of it with the NGK iridiums. I want to replace the wires because mine are physically worn, plus the NGK ones are blue :]

    I ended up ordered them from sparkplugs.com. they're due to show up today or tomorrow.

    view my garage | "I live my life a quarter mile at a time. for those 30 seconds I am free."

  15. #14
    Super Moderator hyunelan2 knows a lot about Elantras hyunelan2's Avatar
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    Default Re: spark plug question

    I ordered my NGK coppers and NGK wires from sparkplug.com, no problems. As everyone said, the NGK wires are blue, but if you put the protective cover over the plugs/wires you don't see them anyway. The NGK wires are a little harder to route than the OEM, as they are bigger and stuffing them into place takes a very small amount of effort. They work well though.


    2010 Equator Sport | 2002 Elantra GLS (sold) | 2003 Tiburon GT | 2004 Santa Fe GLS


  16. #15
    EXD Pro Member BColeman knows a lot about Elantras
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    Default Re: spark plug question

    You can also go to your local Advanced Discount Auto Parts and order them for $69.95 ( for the wires ).

    Kewlkat, I had no idea you had problems with Magnecor. I know a few people that use that brand of wire with no problems, well, that I know of anyway. Stock works for me anyway.

    Follow me at Twitter - @BallisticTorch


  17. #16
    l33t haxx0r saturn has not yet proved knowledgeable saturn's Avatar
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    Default Re: spark plug question

    $40.98 on sparkplugs.com if you don't mind waiting a couple of days.

    view my garage | "I live my life a quarter mile at a time. for those 30 seconds I am free."

  18. #17
    EXD Pro Member BColeman knows a lot about Elantras
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    Default Re: spark plug question

    Wow, that's a great price. Woo-hoo ! ! ! Thanks saturn for letting us know.

    Follow me at Twitter - @BallisticTorch


  19. #18
    Super Moderator hyunelan2 knows a lot about Elantras hyunelan2's Avatar
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    Default Re: spark plug question

    FYI: shipping isn't cheap from sparkplugs.com. After shipping, wires and 4 (cheap) plugs were $61.32


    2010 Equator Sport | 2002 Elantra GLS (sold) | 2003 Tiburon GT | 2004 Santa Fe GLS


  20. #19
    l33t haxx0r saturn has not yet proved knowledgeable saturn's Avatar
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    Default Re: spark plug question

    I suppose. I couldn't find any place in town that stocks them... so it was a good option for me (and it still saves you $10 if you're patient).

    view my garage | "I live my life a quarter mile at a time. for those 30 seconds I am free."

  21. #20
    Super Moderator hyunelan2 knows a lot about Elantras hyunelan2's Avatar
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    Default Re: spark plug question

    Yeah, that's why I bought from them too. Just something to keep in mind for those who are on a shoe-string budget.


    2010 Equator Sport | 2002 Elantra GLS (sold) | 2003 Tiburon GT | 2004 Santa Fe GLS


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