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Downloading Maps
This section covers downloading new maps to the Hydra ECU using the Hydra Nemesis software.

Prior to starting, it is recommended that the pre-loaded map be saved as a backup. To do this, click File→Save As. Make note of the path where you save the map:

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After saving the map, you may proceed to open a different map to download into the Hydra ECU.
Click on File→Open. The software will prompt you to save the current map. If you have already backed up your map by following the instructions above, you do not need to re-save the map.
A window will appear prompting you to open a map. All Hydra EMS maps have a ".hyd" extension:

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Browse to the map you would like to open, then select "Open". You may now load your map to your Hydra EMS device or calibrate or being tuning.