27.05.2026 – Upgrade 3.21
With the introduction of BOOT mode, KESS3 adds a new level of access to the Keihin 38770-XXX ECU, alongside the OBD and BENCH connections already available.
The new mode allows you to work directly on the ECU, expanding intervention possibilities and offering a more complete solution for engine management: from fast connection in OBD, to direct access in BENCH, up to advanced intervention in BOOT.
This means working in greater depth on power delivery strategies, optimizing engine response according to specific needs.
Technical focus
- Connection: BOOT
- ECU: Keihin 38770-XXX
- Production years: from 2021
- Brands involved: Honda
Supported vehicles
Honda Monkey, SH
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