BMW 140i F20 B58 ECU File – MG1 R1C9J8B3B (CAT OFF, Vmax OFF, Sport Display) 9J8 Stage 2 

• Stage 2 calibration created for MG1 on B58 engine
• CAT OFF, Vmax delete and Sport Display enabled
• Fully tested using Auto Tuner OBD interface
• Delivered with original for safe restore​

• Intended for performance upgrades with aftermarket exhaust
• Provides full power access and visual display feedback
• Not certified for street use — for closed course or competition only​