All eFlexFuel E85 kits manufactured from 2017 onwards can be upgraded.
To be eligible for an upgrade: The wiring harness must be the latest JAE-connector version.
Upgrading is simple — you can replace the old control unit with a new one, and your system is ready to continue operating with enhanced features.
Available upgrade options:
- eFlexPlus: eflexfuel.com/en/spare-parts/eflexplus-upgrade
- eFlexPro: eflexfuel.com/en/spare-parts/eflexpro-upgrade
Each upgrade offers additional functionality and advanced control, depending on your needs.
If you’re unsure which wiring harness or upgrade option is right for your vehicle, our support team will be happy to help.