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Old 03-16-2008, 03:19 PM   #1
tig
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spark plugs

not sure why i cant find any good threads on this, maybe i m just stupid and cant use the seach button properly anyways i m looking at picking up a set of spark plugs for my 97 328is M52 motor, i was looking at getting the ngk iridium ix plugs i remember reading a forum about them a lonng time ago cant find it tho , jsut wanna know what u guys recommend are those worth getting? any other suggestions?
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Old 03-16-2008, 05:36 PM   #2
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+1 I feel like getting new sparks, too.
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Old 03-16-2008, 07:01 PM   #3
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highly recommend the ngks.. i replaced the platnium plugs that were in my ride with the ngks and i noticed a vast difference in engine response and power throughout 1200-5000rpm. as for fuel consumption, i didnt notice any improvement according to the OBC readout
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Old 03-16-2008, 07:09 PM   #4
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I remember researching this a lot on bf.c. A lot said the NGK irridiums were overkill and that the simplest bosch copper plugs are best for performance, although they will not last as long.

I tried both NGK irridiums and normal copper ones. Couldn't tell the difference, except the $50.
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Old 03-16-2008, 07:32 PM   #5
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^^ your probably right with nonmodded engines heads, but with my head being modded (port/polish head, m3 cams, and performance valves) i felt a noticable difference in the power band.
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Old 03-17-2008, 12:07 AM   #6
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well looks like im just gonna have to try them out and see what happens, wouldnt expect any major power maybe just a a little better engine resonse i guess, my plugs look prettty old. gonna be installing a few mods in the summer too s52 cams, m50 manifold so who knows what will happen
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Old 03-18-2008, 02:24 AM   #7
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You should be able to notice a difference in how smoothly the engine idles, after the spark plug change. As far as which plug to select, I experienced a smoother idle with a basic copper Bosch or Champion brand over the Platinum 4 and so on... FYI.
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Old 03-18-2008, 09:14 PM   #8
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We found the NGK Copper plugs to be the best on modded engines, and high revving engines! We keep both copper and plat. plugs in stock!
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Old 03-19-2008, 07:31 AM   #9
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We found the NGK Copper plugs to be the best on modded engines, and high revving engines! We keep both copper and plat. plugs in stock!
Rocco save a set for me gonna come pick them up in the next couple of weeks as soon as the car comes out, plus i wanna talk to u about installing a couple of other things,
i was there last summer you switched the springs on mine and ivans car not sure if you remember me
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Old 03-19-2008, 09:46 AM   #10
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We found the NGK Copper plugs to be the best on modded engines, and high revving engines! We keep both copper and plat. plugs in stock!
Yup, the NGK BKR6E are the way to go ... best plugs for performance. They just don't last that long, which is where the IX plugs shine.

For straight out performance, NGK copper. For long life, NGK IX. Do NOT get any wacky multi prong plugs (like the plus 4). They suck.
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Old 03-19-2008, 12:21 PM   #11
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Yup, the NGK BKR6E are the way to go ... best plugs for performance. They just don't last that long, which is where the IX plugs shine.

For straight out performance, NGK copper. For long life, NGK IX. Do NOT get any wacky multi prong plugs (like the plus 4). They suck.
thanks for the info man, how long to the copper ones last approx?
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Old 03-19-2008, 12:29 PM   #12
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thanks for the info man, how long to the copper ones last approx?
I would change them every year or so (20-30k), but at <$20 for the set, that not a big deal at all. The IX ones can last up to 100k.
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Old 03-19-2008, 09:55 PM   #13
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Where can I get a set of NGK BKR6E for 20 bucks?! Do tell!
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Old 03-19-2008, 11:31 PM   #14
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Where can I get a set of NGK BKR6E for 20 bucks?! Do tell!
Canadian Tire ... $6 for 2 I think
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Old 03-20-2008, 01:59 AM   #15
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^less afaik, they were on sale 2 weeks ago
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