NGK 97506 with out of the box gap, .031”.
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'14 435i RWD - BM3 stage 2+ E30/bolt ons/stock turbo/full drag pack -- [10.9@125].....60 to 130 - 8.5
'16 340i RWD - BM3 stage 2+ E50/bolt ons/stock turbo/full drag pack -- [10.2@131]......60 to 130 - 7.5
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