Link G4+ Atom X ECU Standalone Engine Management
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Link G4+ Atom X ECU Standalone Engine Management

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The Link Atom ECU uses the "A" loom to wire in. WE HAVE PLUG AND PLAY APPLICATIONS AVAILABLE, SUCH AS 1UZ! Please contact us with your build and we can offer adapter harnesses

Please note free shipping is in the USA lower 48 states only. Please contact us with a shipping quote to your location if you are outside the USA or are in Hawaii/Alaska.

The Link G4X AtomX ECU is the latest version of Link's entry-level ECU. Don’t let its size fool you however, the AtomX has 512 megabytes data logging and uses the same microcontroller as the entire G4X range! It is more responsive and has higher bandwidth that its G4+ Atom II predecessor.

G4X features 8 x faster communications speed, allowing you to download logs 8 x faster and pushes all the logging quickly up to a new and improved PCLink – available for download below in the features tab.

G4X has 512MB of logging at 32bit using up to 250 channels, each limited to up to 1kHz per channel (by the Operating System), with a maximum of 100k Samples/sec.

The AtomX can control up to 2 rotors or 4 cylinders with sequential injection and direct spark. This makes it ideal for naturally aspirated engines that just need a re-tune and don’t need all the extra sensors and features that come with the higher end options that Link offers

  • $765
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  • Weight
    2 lbs
  • SKU


  • 2 x Digital inputs
  • 2 x Temperature inputs
  • 3 x Analog inputs
  • 2 x Trigger inputs


  • 4 x Injection drives
  • 4 x Ignition drivers
  • 4 x Auxiliary outputs*
  • +5V Sensor power supply

* unused ignition & fuel drives can also be used as auxiliary outputs


  • 1x CAN bus
  • 1 x thirty four pin, waterproof connectors
  • 1x USB tuning connection
  • Upgraded communications chip


  • Comes loaded with all of Link ECU’s standard features
  • Onboard barometric pressure sensor
  • 512MB of logging memory
  • 20 general purpose tables
  • Runs on PC Link software for G4X
  • Link External MAP Sensor
    No thanks, Yes, 5 bar 1/8 NPT, 101-0071, Yes, 4 bar, 101-0165, Yes, 2.5 bar, 101-0163, Yes, 3 bar, 101-0164
  • Link IAT Sensor
    No, Yes + steel weld boss 101-0045 + 47, Yes + aluminum weld boss 101-0045 + 46, Yes, 101-0045
  • Link Ethanol Sensor
    Yes, with -6 AN fitting 101-0034, No
  • Link Oil/Fuel 10 bar Pressure Sensor
    Add both!!, Add one please! 101-0080, No thanks
  • Link Coolant Temp Sensor
    Yes, 101-0076, No
  • Link Boost Control Solenoid
    Yes, 4 port 4BCS, Yes, 3 port 3BCS, No
  • Shipping
    USA 48 states, Hawaii/Alaska/Puerto Rico, Canada, Europe, Australia/New Zealand

Most product ships from either the manufacture or largest wholesale location to pass the saving to you. Most orders will ship via UPS, as we will be able to provide the best rates and have had the least issues when using UPS.

IF YOU DO NOT LIKE THE AUTOMATED SHIPPING CALCULATOR'S RATES, PLEASE CONTACT US AND WE CAN GET YOU A BETTER ONE! Especially for anyone outside the USA, please contact us with a list of parts you'd like to order, and where you are located.

We accept the following payment methods:

Also Venmo and unmarked nonsequential dollar bills

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