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jyamona jyamona is offline
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Posts: 564
Join Date: Aug 2013
Car: 2010 135i 6MT
Default 03-09-2015, 06:29 PM

Jeez how are you people installing these? Hah... I hadn't heard of / seen any issues with the NGK outside of this thread. I've ran mine for 5-6k miles so far, no issue. gapped to .022"
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