Did you oil the BMC filters? Were they too oily from the factory? Wondering if you fouled the MAF sensors...
I have the stock papers, with no charcoal filters and have run the car very hard in two road rally events with zero issues.
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Current: '16 GT4
Past ///Ms:
'13 F10 M5, Alpine Weiss III/Sakhir Orange Full
'10 E60 M5, Space Gray/Black
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