epicEFI Firmware Downloads

Use the online flash tool to backup your entire ECU. and flash new firmware.

Need help with flashing? Join us on discord to get help and hang out.
If you have issues flashing, you can always use ST-Link Utility to fully erase/flash your ECU firmware in DFU mode.

Before reflashing, save your tune in a safe place.
After flashing, send your tune back to the ECU and make sure everything looks correct.
LUA is saved in the .msq file, so always have a backup.
Having errors about &# characters?
Use lua_clear.msq to reset your LUA scripts (File → Load Tune in EpicTuner).