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Plugs - PFR7B and PFR7G

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Old 10 September 2014, 01:31 PM
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Knotty_
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Default Plugs - PFR7B and PFR7G
Anyone know the difference?

I used the B's in my WRX when modded, but this STi has G's in currently.
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Old 10 September 2014, 01:33 PM
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B: Special Design

G: Fine wire nickel alloy center electrode

This about as much info as I can find....
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Old 10 September 2014, 01:58 PM
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stonejedi
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I know the Ngk PFR7B works very well,its probably a heat range/metal difference.SJ.
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