Auto Tuner Slave - unlocked

🛠 Slave vs. Master Units

• Master Tool

  • Can read/write unencrypted ECU files.

  • Allows you to edit maps yourself using software (WinOLS, Swiftec, etc.).

  • Suited for advanced tuners who build their own files.

• Slave Tool

  • Reads the ECU file, but the file is encrypted.

  • You must send it to your linked Master tuner (usually a file service provider).

  • They modify it and send it back → you write it back to the car.

  • Cheaper than Master, easier to use, ideal for tuners who don’t edit maps themselves.

⚡ Why Choose a Slave Tool?

• Lower cost of entry into the tuning business.

• Simple workflow: you just handle reading/writing, the Master/file service handles tuning.

• Still supports the same vehicle coverage as Master.

• Faster business start if you rely on a trusted file provider.

⚠️ Things to Consider

• A Slave tool is locked to a specific Master tuner. You can’t switch unless the tool is reconfigured by Autotuner (fees apply).

• You rely completely on your Master/file service for turnaround speed and file quality.

• If you want independence (editing your own maps, moving between services), a Master tool is better — but more expensive.

✅ Typical Workflow with Autotuner Slave

1. Connect tool to the car → read ECU/TCU file.

2. File is encrypted → upload to your Master/file service.

3. They modify the file (Stage 1, DPF/EGR/SCR off, TCU tune, etc.).

4. They send the modified encrypted file back.

5. Write it back to the car with Autotuner Slave.