Thread: 4th Gen Nitrous
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Old 07-18-2012, 02:48 PM
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snrusnak snrusnak is offline
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The reach between the two NGK's you posted is actually different. Timmy's NGK plug has a reach that matches the OEM Bosch plug. The other NGK plug that you show is a different reach from OEM(not sure if this matters).

Also, they might be a suitable replacement(not really sure honestly) but they do not appear to be "yttrium enhanced". I'm not even really sure what the yttrium even does, I think it might just be for longevity and have nothing to do with performance.

I'm trying to help but honestly don't have "the answer". A plug like one of those NGK's might be a suitable replacement(not really sure), but it is NOT the same as an OEM plug that is one heat range colder. Again, I know that's not an answer, but it's all I know lol.

EDIT: Also, another difference between the OEM Bosch intake plug is that it says it has two ground electrodes and the NGK I believe does not. Again, not really sure if this makes a difference.
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