Flex Slave

🔧 What is the Flex Slave Tool?

• A professional ECU & TCU programmer (same hardware as Flex Master).

• Reads and writes ECU/TCU software via OBD, Bench, or Boot mode.

• Files you read are encrypted, so you cannot edit them directly.

• You must send the file to your linked Master tuner/file service, who modifies it and sends it back.

• Designed for tuners who want to focus on reading/writing only, not map editing.

🛠 Flex Slave vs Flex Master

• Slave Tool

  • Encrypted files.

  • Must use a linked Master/file service.

  • Cheaper startup cost.

  • Perfect for mobile tuners or beginners.

• Master Tool

  • Open/unlocked files.

  • Can edit maps yourself or use any file service.

  • More expensive, but gives full independence.

⚡ Why Choose Flex Slave?

• Lower investment → ideal for new tuners or mobile businesses.

• Simple workflow → read, send, receive, write.

• Same vehicle coverage as Master → cars, vans, bikes, trucks, tractors, marine.

• Fast turnaround → depends on your Master/file provider (some within 15–30 mins).

• Scalable → you can later upgrade to Master if you want independence.