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Link G4X MonsoonX ECU
- G4X MonsoonX standalone ECU, ideal for 2-4 cylinder engines requiring more I/O and motorsport functionality than AtomX.

Link G4X AtomX ECU
Bridging the gap between the entry and mid-level ECUs, the MonsoonX delivers advanced tuning and motorsport features in a compact and capable package.
Sharing the same championship-winning G4X architecture as the rest of the G4X range, the MonsoonX delivers the same proven tuning experience and reliability trusted by enthusiasts and professional tuners worldwide.
The MonsoonX shares the same processor, firmware, software and standard G4X feature set found throughout the G4X range. Features include CAN Bus, Flex Fuel, Flexible Engine Protection Limiters, CAN Keypad Control, Open and Closed Loop Boost Control, Dual Closed Loop Lambda, VVT Control, a built-in Trigger Oscilloscope, compatibility with aftermarket displays, and 512MB of onboard data logging. It also features a built-in MAP sensor.
Building on the capability of the AtomX, the MonsoonX adds additional Auxiliary Outputs, Digital Inputs and Analogue Inputs along with advanced tuning and motorsport functionality. Depending on your I/O requirements, features such as Launch Control, Anti-Lag, Gear Shift Control, Paddle Shift Control and VVT Control allow the ECU to be configured to suit the specific requirements of your build.
The MonsoonX is the ideal solution for naturally aspirated and turbocharged engines that require some advanced tuning and motorsport features, without needing to step up to one of Link's higher-level ECUs.
Note: The MonsoonX will run any of the above features, but it cannot run them all at once. The number of features you can run is dependent on how many of the limited Inputs and Outputs each feature needs.
Models Supported |
The MonsoonX can control up to 2 rotors or 4 cylinders with sequential injection and direct spark. |
Features
The MonsoonX combines all standard G4X features with a selection of advanced tuning and motorsport features, including:
ECU Features |
Built-in MAP Sensor 8 Custom Math Blocks with 30 characters Flex Fuel Trigger Oscilloscope Flexible engine protection limiters CAN Keypad Control VVT Control Open Loop Boost Control Closed Loop Boost Control Onboard Lambda Sensor Control Dual Closed Loop Lambda Compatible with all leading after-market dashes via CAN or serial stream. 512 Megabytes of Internal Data Logging |
Motorsport Features |
Launch Control Anti-Lag Gear Shift Control Paddle Shift Control Note: The MonsoonX will run any of the above features, but it cannot run them all at once. The number of features you can run is dependent on how many of the limited Inputs and Outputs each feature needs. |
Specifications
The MonsoonX combines all the core AtomX specifications with additional I/O, including:
Outputs |
4 Injection Drives 4 Ignition Drives 6 Auxiliary Outputs +5V Sensor power supply Unused Inj/Ign can be used as a Auxiliary Outputs |
Inputs |
4 Digital Inputs 2 Temperature Inputs 4 Analogue Inputs 2 Trigger Inputs 1 Knock Input Unused Temperature and Analogue Inputs can be used as Digital Inputs |
Communications |
1 CAN Bus Channel Mini-B USB Tuning Connection |
Data Logging |
512MB Onboard Logging Memory 100kHz Maximum Total Logging Rate 250 Logging Channels |
Product Dimensions |
95mm(L) x 130mm(W) x 45mm(H) 3.74in(L) x 5.12in(W) x 1.77in(H) |
Product Weight |
220 grams (7.76 ounces) |
Material |
Glass-filled nylon enclosure |
Electrical |
Operating Voltage Range: 6.5-24V Maximum Input Voltage: 36V Maximum Continuous Current Draw: 3A Operating Current: 200mA |
Misc. |
Manufacturing Standard ISO 13485 Ambient Temperature Range -30 - 90°C |
What's in the Box |
MonsoonX G4X ECU Quick Start Guide Mounting Bracket USB Tuning Cable LinkECU Stickers |
Connector |
Superseal 4 Row 34 Position Part number 4-1437290-0 |












