Kess 2.90 -

Read and write directly through the diagnostic port—no need to remove or disassemble the ECU. Common Uses: ✅ Stage 1 & 2 Performance Tuning ✅ DPF / EGR / AdBlue Deletes ✅ DTC (Diagnostic Trouble Code) Removal ✅ DSG Transmission Tuning

| Feature | Kess 2.90 | Ktag 7.020 | PCMflash | Flex (Magpro) | | :--- | :--- | :--- | :--- | :--- | | | OBD + Bench | Bench (Trionic) | OBD | Bench + OBD | | Speed | Very Fast | Fast | Moderate | Fast | | TCU Support | Excellent (ZF/DSG) | Poor | Moderate | Good | | Price (Genuine) | High ($3k+) | Medium ($1.5k) | Low ($500) | High ($2.5k) | | User Friendliness | 9/10 | 6/10 (Complex) | 7/10 | 8/10 | Kess 2.90

If you are migrating from an older master, the 2.90 revision offers several critical improvements: Read and write directly through the diagnostic port—no

In the timeline of cloned ECU tools, version numbers dictate capability. Older versions (like 2.23 or 2.47) were stable but had limited vehicle coverage. Newer versions (3.0+) introduced sophisticated online encryption and countermeasures that made cracking the software incredibly difficult. Newer versions (3