- Tuning refers to the modification of a vehicle’s engine or ECU parameters to improve performance, efficiency, or drivability. Tuning can involve software adjustments, hardware modifications, or both.
- Remapping specifically refers to modifying the ECU’s internal maps or calibration curves to alter performance characteristics. This can be done for increased power, better fuel economy, or even limiting output for specific use cases. Unlike generic "file flashing," proper remapping involves custom adjustments tailored to the vehicle.
- Chipping (Chip Tuning) is an older term from the era when ECUs used replaceable EPROM or PROM chips. In the 1980s and 1990s, tuners had to physically remove, modify, and reinstall these chips to change ECU parameters. The term became widely associated with "Superchips" and similar tuning brands of the time.
While modern tuning is done via software, the principles of ECU modification remain the same—precision adjustments to optimize performance for the intended use.