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Sounds like either a bad coil or plug. Try replacing just the plug or just the coil and if see if the misfire returns. That way you can narrow down which one is causing the problem.
Did you gap your plugs when you installed them?
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2011 BMW 135i ///M-Sport, DCT
Bilstein B12 kit, Dinan camber plates, M3 front control arms, Whiteline poly RSFB, MHD Stage 1, cp-e Charge Pipe, H&R Front sway bar, BMW performance diffuser
Last edited by BimmerAg; 01-11-2018 at 10:58 AM..
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