I'll throw out some good news. I was clearing the CEL for several thousand miles with the JB4, but now it's been gone again for a couple thousand miles. Go figure.
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2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
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