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Spark plugs info please???

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Old 03-11-2010, 04:23 AM
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cedoulinou
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Default Spark plugs info please???
Ok!! I need to change the spark plugs on my 05 z. I want to know if I need to gap the ngk iridium (or iridium spark plugs never need to be gap)? If I need to gap it what is the gap size please?


thanks guys

appreciate your help...
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Old 03-11-2010, 05:51 AM
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str8dum1
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you never gap iridiums
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Old 03-11-2010, 06:14 AM
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jtabraham
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I believe NGK iridiums come pre-gapped and are vehicle specific (the Z has a .044 gap).

The NGK Iridium IX part number you are looking for is LFR5AIX-11. I got mine from Z1auto.com

http://z1auto.com/prodmore.asp?model...ne&prodid=2230
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Old 03-11-2010, 09:10 AM
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DavesZ#3
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Both platinum and iridium come pregapped.
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Old 03-12-2010, 12:20 AM
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blitz2k1
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Just changed my 2005 z's plugs 3 weeks ago, went with the NGK iridium in the Stock heat range. They come pre-gapped. Don't Touch them.!
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Old 03-14-2010, 11:06 AM
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cedoulinou
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thanks for your help
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Old 03-16-2010, 02:54 PM
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JE'S350z
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Originally Posted by jtabraham
I believe NGK iridiums come pre-gapped and are vehicle specific (the Z has a .044 gap).

The NGK Iridium IX part number you are looking for is LFR5AIX-11. I got mine from Z1auto.com

http://z1auto.com/prodmore.asp?model...ne&prodid=2230
Yeah you can get them from that website for 68 bucks shipped or you could go on ebay for $42 dollars shipped or a local parts store for $45.
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