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Spark plug gap N55 OEM vs Bosch OE stock vs Stg1 Spark plug gap N55 OEM vs Bosch OE stock vs Stg1
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Old 03-16-2016, 12:54 PM
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Spark plug gap N55 OEM vs Bosch OE stock vs Stg1
Can anyone confirm what the stock BMW OEM (12120037582) spark plug gap is set at for 2013 N55 3.0i?
Ordered a set of Bosch ZR5TPP33S plugs and box states .8mm/.032, which are theoretically the OE (non-BMW logo'd) version.
Where as the ZR5TPP33, which is an alternative plug is sold pre-gapped at .7/.028.

Also contemplating closing the gap some to work better with Stage1 or JB4 tune that is forth coming.
Thanks
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