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Damn Spark plug _ Which to use _

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Old Jun 30, 2016, 09:02 PM
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Damn Spark plug _ Which to use _
It shouldn't be a hard decision, but I keep seeing different reviews on which plug to use on our cars. I have an EVO 8, 450 AWHP, it is time it replace the plugs, I am thinking of continuing the route of BR7ES - should I look at getting a colder plug, or continue this plug with .020 gapping. Have any people had better luck with a different plug?
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Old Jul 1, 2016, 12:14 AM
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You should be running bPr7es. Gapped at .020". As far as running a colder plug, each setup and tune is different. You need to read the plug.
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Old Jul 1, 2016, 06:15 AM
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BPR7ES are great, and gapped around 20. I also tried the BR7ES (non protruded tip) but ended up back with the BPR. Great plug, available locally, it really IS an easy decision.
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Old Jul 1, 2016, 07:41 AM
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I accidentally got BR's, once....they caused misfire when in boost. Switched back to BPR's and all was good, and still is...
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Old Jul 1, 2016, 07:46 AM
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I got them on purpose just to try, and had similar results lol
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Old Jul 1, 2016, 11:52 AM
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As everyone stated bpr7s have never failed me on 8s.

Since I own a 9, I get screwed over and get to shell out $50 for plugs
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Old Jul 1, 2016, 03:35 PM
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Why is that what's the difference between the 8s plugs vs the 9 just curious are they not the same motor ?
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Old Jul 1, 2016, 05:39 PM
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Originally Posted by Evo_Goodness
Why is that what's the difference between the 8s plugs vs the 9 just curious are they not the same motor ?
Cylinder head is different, it uses a different diameter spark plug..
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Old Jul 6, 2016, 01:49 PM
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Originally Posted by letsgetthisdone
Cylinder head is different, it uses a different diameter spark plug..

steeling this thread since i have the evo 9 ive been using the iridium ix. the dealer recommended the ilh7 laser plugs. wich ones are best ?
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Old Jul 7, 2016, 05:44 AM
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Originally Posted by DanielM
steeling this thread since i have the evo 9 ive been using the iridium ix. the dealer recommended the ilh7 laser plugs. wich ones are best ?
I'm running Denso Iridium IKH24s on my Evo IX with full bolt ons. They've worked well for me so far, about 12,000 miles on them.
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Old Jul 10, 2016, 08:52 PM
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This is a questions that you should direct to your tuner. I know if I switched my plugs after getting tuned my tuner would kick my ***.
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Old Jul 11, 2016, 12:34 AM
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I would recommend NGK BPR8EIX gapped at .020"

I prefer the laser Iridiums to copper.
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Old Jul 11, 2016, 12:35 AM
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Originally Posted by letsgetthisdone
You should be running bPr7es. Gapped at .020". As far as running a colder plug, each setup and tune is different. You need to read the plug.
How long do those copper plugs last you?
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