rusEFI offers complete software download bundles for multiple supported microcontrollers and boards.

# IMPORTANT NOTE: TunerStudio v3.1.04 or later is REQUIRED! Please double check the version before updating your firmware, or your settings could be lost when updating!

### Common Boards

[microRusEFI 0.4 and newer (STM32F4)](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_mre_f4.zip)

[Proteus 0.6 (STM32F7)](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_proteus_f7.zip)

[Proteus 0.3-0.5 (STM32F4)](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_proteus_f4.zip)

[STM32 Discovery](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_default.zip)

### Hellen Family Boards

[Nissan 121 pin](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_hellen121nissan.zip)

[VAG 121 pin](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_hellen121vag.zip)

[Mercedes 128 pin](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_hellen128.zip)

[Miata NBT 72 pin](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_hellen72.zip)

[Miata NA6 64 pin](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_hellenNA6.zip)

### Uncommon Boards

[Frankenso stm32f407 bundle](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle.zip)

[Frankenso PnP Miata NA6 bundle](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_frankenso_na6.zip)

[microRusEFI 0.3 and older (STM32F7)](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_mre_f7.zip)

[Proteus 0.2 and older (STM32F7)](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_proteus_legacy.zip)

# Advanced

[Older Releases](https://github.com/rusefi/rusefi/releases/)

[Nightly builds](https://rusefi.com/build_server/)

# [Quick Start](HOWTO-quick-start)

[Choose Your Own Adventure](Try-It)

[Virtual Simulator](Virtual-simulator)