How to increase power output of BMW E46 320i (M52TUB20) engine through software modification?

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How to increase power output of BMW E46 320i (M52TUB20) engine through software modification?

Software modification options:

• ECU remapping
• Piggyback chip installation
• Full ECU replacement

Potential gains:

• Horsepower increase: 15-25 HP
• Torque increase: 20-30 Nm
• Improved throttle response

Considerations:

• Choose a reputable tuner with experience in BMW engines
• Ensure your engine is in good condition before tuning
• Be aware that tuning may affect warranty and emissions compliance
• Consider supporting modifications (air intake, exhaust) for best results

Note: Always prioritize reliability over maximum power gains, especially for daily drivers.