Latest revision as of 12:42, 29 January 2026

List of supported hardware

epicEFI supports a wide range of available hardware to purchase from different vendors. Below is a listing of the supported hardware.

epicECU

This is the ECU that we manufacture and sell. It supports a large amount of inputs and outputs as well as dual Drive by Wire and dual Knock Control.

This ECU supports:

12 cylinder sequential injection and ignition
22 auxiliary inputs
24 auxiliary outputs
8 k-type thermocouple inputs
Dual knock channels
Dual drive by wire
CAN-bus
FlexFuel

Internal name: epicEFI

For more details, including pinouts see epicECU.

rusEFI

Below are the boards manfucatured and sold by rusEFI .

uaEFI - Ultra Affordable

This is a ECU designed and sold by rusEFI. This ECU is designed as the low budget option while still retaining a good feature set.

Some of the supported features are:

6 cylinder sequentual injection and ignition
Onboard Wideband Controller
Onboard SD card
Dual knock channels
Dual drive by wire

There are two versions of the ultra affordable, dictated by the microcontroller.

uaEFI - The variant powered by the STM32 F4
uaEFI Pro - The variant powered by the STM32 F7

These two can be distinguished by the writing on the main microcontroller.

There are a few internal names based on the microcontroller and table size:

uaefi - The basic uaEFI powered by the STM32 F4
uaefi_pro - uaEFI powered by the STM32 F7
uaefiBIGFUEL - The same as uaefi but with 32x32 fuel and 24x24 ignition tables
uaefi_pro_bigfuel - Same as uaefi_pro but with 32x32 fuel and 24x24 ignition table

For more details, including pinouts, schematics and gerber files see uaEFI.

uaEFI Honda OBD1

This is the same controller as uaEFI - Ultra Affordable sold by rusEFI but featuring a Honda OBD1 connector and footprint for fitting into OEM Honda ECUs.

Some of the notable features:

Reads the OEM distributor (single tooth and 24 tooth)
Onboard Wideband Controller exposed as external connector
Option to convert to Coil on Plug
Option to convert to Hall Sensors

Internal name: uaefi-obd1

For more details, including pinouts, schematics and gerber files see uaEFI Honda OBD1.

uaEFI 121 Pin

This is the same controller as uaEFI - Ultra Affordable sold by rusEFI but featuring a 121 Pin connector and metal case.

Some of the notable features are:

8 cylinder injection and ignition
Smart coils by default, expandable with on-board IGBT
Dual onboard Wideband Controller
Dual drive by wire
9 auxiliary inputs
6 Low Side Drivers
2 High Side Outputs

Internal name: uaefi121

For more details, including pinouts see uaEFI 121 Pin.

This ECU is NOT pin compatible with VW ME7.5 ECUs. Connecting this ECU to a ME7.5 car will probably damage something on the car and/or ECU.

Proteus

The rusEFI Proteus is a ECU designed by Matthew Kennedy and sold by rusEFI. This ECU has been sold with different case styles as and bare boards. It features three AMPSEAL connectors.

Some of the features are:

12 cylinder sequential injection and ignition
16 Low Side Drivers (for injection and others)
12 5V ignition (or general purpose) outputs
4 High Side Outputs
15 auxiliary inputs
Dual drive by wire

There are two variants of the Proteus, the one with the STM32 F4 and F7. Only the F4 variant is currenty supported.

Internal name: proteus_f4

For more details, including pinouts, schematics and gerber files see Proteus.

microRusEFI (MRE)

This a small form factor ECU designed and sold by rusEFI. packaged into a compact ECU case featuring a Molex CMC connector.

Some of the features are:

4 cylinder sequential injection and ignition
6 additional Low Side Drivers
14 auxiliary inputs
2 High Side Outputs
Drive by Wire

Internal name: mre_f4

For more details, including pinouts, schematics and gerber files see microRusEFI.

F407 Discovery and Frankenso

These are ECUs designed and previously sold by rusEFI.

This ECU features a STM32F4DISCOVERY hardware evaulation daughterboard and is considered legacy hardware and should be used only with experienced users.

It is strongly recommended to upgrade to a newer board. For more information, see Frankenso.

Boss Garage

These are the ECUs designed and manufactured by Boss Garage. They are based in Portugal.

BossBrain

The BossBrain is the module that is powering all Boss Garage PnP ECUs and is located inside the cases as a daughterboard.

Some of the ECUs (but not limited to) include:

BossECU Nissan S15X - (CG10 / CG13 / GA14 / GA16 / SR20)
BossECU BMW M3.1
BossECU PSA NFW
BossECU Nissonda (CG10DE / CGA3DE / D16B6 / D16B7)
BossECU PSA NFX
BossECU Nissan S13X - (CA18 / SR20)
BossECU Opel C1XSE - (C14SE / C16SE)
BossECU BMW M5.2
BossECU Suzuki Vitara 48p
BossECU Opel M2.8
And others, see the official website

The BossBrain and respective PnP boards are proprietary.

Internal code: bossbrain_f427

BossECU 48

The BossECU 48 pin is a ECU sold and manufactured by BossGarage. This is their flagship ECU model featuring the following features:

8 cylinder sequential ignition and injection
12 spare inputs
2 Exhaust Gas Temperature inputs
8 additional Low Side Drivers
Dual onboard Wideband Controller
Drive by Wire

The BossECU 48 is proprietary. To see more info, including the pinout see BossECU 48

Internal code: BossECU_48

AlphaX

This series of universal and PnP ECUs is manufactured by AlphaX Electronics from Puerto Rico.

They offer various plug and play solutions for Japanese cars and some European ones.

AlphaECU Brainboard

The AlphaX Brainboard is a bare board designed to be integrated into various other enclosures and it is designed to be embedded onto a carrier board. The outputs are not present and only some inputs are protected.

For more details, see AlphaX Brainboard.

Internal code: paralela

AlphaECU Silver

The AlphaECU Silver is manufactured and sold by AlphaX. The silver is designed as the midrange ECU in their lineup.

Some of the notable features are:

4 cylinder sequential injection and ignition
Onboard Wideband Controller
4 additional Low Side Drivers

The AlphaECU Silver is proprietary. To see more info, including the pinout see AlphaECU Silver.

Internal code: alphax-silver

AlphaECU Gold

The AlphaECU Gold is manufactured and sold by AlphaX. The Gold is designed as the flagship model in the AlphaECU lineup.

Some of the notable features are:

8 cylinder sequential ignition and injection
4 additional Low Side Drivers
Dual drive by wire
Onboard SD card
FlexFuel

The AlphaECU Gold is proprietary. To see more info, including the pinout see AlphaECU Gold.

Internal code: alphax-gold

KLMotorsport

If you bought a ECU from KL Motorsport their ECUs use the KLM BrainBoard inside. They offer PnP ECUs for various cars and models.

They offer PnP models for:

BMW M50
BMW M50TU
VAG ME3.8
VAG ME7.5

And others. Their Facebook page offers more details.

Internal code: KLM_BrainBoard

Arduino Upgrade Boards

Several STM32 boards exist from various designers that use the Arduino Mega footprint. These boards are designed as Speeduino upgrade boards, where you replace the Arduino Mega with a STM32 upgrade board and then run epicEFI.

Please be advised that not all Speeduino boards are supported. The deciding factor is the on threshold of the MOSFETs and gate drives for ignition. For example, the STP62 on the Speeduino 0.4 and 0.3 boards are not supported, while MOSFETs on the UA4C are supported. Check the respective MOSFET datasheet and look for the "ON threshold" or "Gate threshold". It should be less than 3V.

MEGA144H7

This upgrade board has been designed by ggurov and turboedge, originally inspired by pazi88 and sold by DCwerx. The board is green.

This board uses a 144-pin STM32H743 and has an onboard SD card slot and CAN physical interface.

The analog input buffers are onboard, but the board does not have output buffers (direct 5V drive).

Internal code: MEGA144H7

The MEGA144H7 is proprietary. For more information, including the pinout see MEGA144H7.