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Link Thunder G4 standalone EMS

Link G4+ Thunder EMS ECU Stand Alone Engine Management

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.

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Regular Product
  • $2,325
Free shipping

The biggest, baddest, and best Link has to offer! This is overwhelmingly our favorite ECU to use. Unlike the AEM Infinity 7 series (708, 710, etc.), the Thunder is designed specifically out-of-the-box ready for Bosch LSU 4.9 wideband O2 sensors. It also is hundreds less, and unlike the Haltech Elite series, does not require external wideband controllers or thermocouple boxes for EGT!

Link also provides 24/7 support for their products. Their boxes are created and manufactured entirely inhouse in New Zealand


16 x Digital inputs (6 are high speed differential type for ABS sensors etc)
4 x Temperature inputs
16 x Analog inputs
2 x Trigger inputs
2 x Knock inputs
2 x LSU 4.9 Wideband lambda sensor inputs
2 x K Type Thermocouple inputs


8 x Peak and Hold injection drives
8 x Ignition drivers
18 x Auxiliary outputs^
+5V Sensor power supply
+8V Sensor power supply
^unused fuel and ignition drives can be used as additional Aux outputs


2 x CAN bus
1x Serial (RS232) connection
1x USB tuning connection

Sensors and looms available as optional extras 

    • SKU
    • Weight
      8 lbs
  • Link External MAP Sensor
    Yes, 3 bar, 101-0164, Yes, 2.5 bar, 101-0163, Yes, 4 bar, 101-0165, Yes, 5 bar 1/8 NPT, 101-0071, No thanks
  • Link IAT Sensor
    Yes, 101-0045, Yes + aluminum weld boss 101-0045 + 46, Yes + steel weld boss 101-0045 + 47, No
  • Link Ethanol Sensor
    No, Yes, with -6 AN fitting 101-0034
  • Link Oil/Fuel 10 bar Pressure Sensor
    No, Add one please! 101-0080, Add both!!
  • Link Coolant Temp Sensor
    No, Yes, 101-0076
  • Link Boost Control Solenoid
    No, Yes, 3 port 3BCS, Yes, 4 port 4BCS
  • Safety & Compliance
    • Prop 65 Yes/No

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

  • Fitment Type
    Regular Product

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