BMW F9X M8 Performance ECU Software (2019+)Overview BMW F9X M8 4. 4L S63 twin turbo V8 Stock Performance 591 HP 553 TQ BMW F9X M8 Competition 4. 4L S63 twin turbo V8 Stock Performance 617 HP 553 TQ 2018+ F9X Series BMWs are shipped with "locked" ECUs that require bench unlocking prior to ECU Tuning. This process requires the ECUs to be removed and unlocked at the FEMTO Facility. The ECU Unlocking process is included with the listed price, and no additional charges are incurred. At this time,
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