Link ECU | G4X Xtreme X | Wire - In

Link ECU 109-4000

( 109-4000 )


Used as: A premium aftermarket ECU for professional motorsport or more demanding road car application.

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Link Engine Management Logo | LINK ECUS IN ESSEX

Link ECU | "G4X XtremeX"

  • The Link G4X XtremeX ECU is one of Link Engine Management's premium ECUs - with more inputs, outputs and features.
  • The G4X XtremeX has built in E-throttle & all of the advanced features including anti-lag, cruise control & traction contol.
  • It features eight (8) injector drives & eight (8) ignition drives, and can control up to four (4) rotors or eight (8) cylinders with sequential injection and direct spark. A great choice for both professional motorsport or more demanding road car application.

Features | "G4X XtremeX"


  • 8/10* x Digital Inputs
  • 4 x Temperature Inputs
  • 11 x Analog Inputs
  • 2 x Trigger Inputs
  • 2 x Knock Inputs

?*2 inputs are required if / when using 2nd CAN Bus.


  • 8 x Injector Drivers
  • 8 x Ignition Drivers
  • 10 x Auxiliary Drivers**
  • +5V Sensor Power Supply
  • +8V Sensor Power Supply

**Unused fuel / ignition drivers can be used as additional AUX outputs.


  • 2 x CAN Bus
  • 1 x USB Tuning Connection
  • 1 x Serial Connection [RS232]
  • Faster Communications than G4+ Models
  • 512MB (Megabytes) Data Logging

Advanced Features [Not found on smaller Link Storm ECU]:

  • Fully programmable E-throttle control, complete with capability of gear shift throttle blip & antilag.
  • Cruise Control.
  • Two (2) independent CAN modules.
  • 30 general purpose tables.
  • Rotary oil metering pump control.
  • All motorsport features including full gear shift control, antilag and launch control & traction control.
  • Advanced closed loop lambda strategy and duel bank lambda control. 

Full Specification [Link ECU] 

Link ECU Supply, Installation & Calibration:

  • Redline Tuning can supply, install & calibrate both the Link G4X XtremeX ECU or any other Link Engine Management Product currently available in Essex, London and the South East of England.

Contact Redline Tuning 

Important Notes:

  • This product requires "A" & "B" Looms, or "A" & "B" connector kits.
  • Please double check / cross reference your existing ECU's pinout with the images we have provided, to ensure connections are correct.

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Used for: Custom wiring jobs utilising Link Wire - In ECU's.
  • Please note that we do not carry stock for all Link Engine Management products. If we do not have an item in stock it will be ordered for you, please allow up to 2 extra business days for us to process your order. If you need an item urgently, or would like to know if an item is in stock, please contact us here
  • Prices shown do not include VAT, this will be calculated and added at checkout for UK customers.
  • For international customers, sales tax will not be charged at checkout. You will be responsible for the VAT equivalent wherever you live. This will be charged by the courier prior to delivery. We have zero control over these charges and they vary by the destination country. We advise that you check before ordering if you are unsure.
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