Just to update this, it turns out the o2 sensors were misplaced, now the car runs like a champ. Thanks for the ones with the help.
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2008 335i E93, JB4 G5IS0| BMS Catless DP| BMS DCI|BMS Oil Catch Can| BMS Short Throw Clutch Stop, BMS Angel Eyes| FULL ACS Authentic Kit|ACS Springs| FULL ZiZA LED INTERIOR.
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