Hybrid Tune ECU remapping and tuning specialists


Link G4X XtremeX

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The Link G4X XtremeX is a premium ECU’s with more inputs, outputs and features. The XtremeX has built in E-throttle and all the advanced features including Anti-lag, Cruise Control and Traction Control.

The Link G4X XtremeX can control up to 4 rotors or 8 cylinders with sequential injection and direct spark thanks to its 8 injector drives and 8 ignition drives.

The Link XtremeX is an excellent choice for high-level motorsport and more demanding road car applications. 

Please keep in mind that purchasing a G4+ Xtreme ECU for peak and hold requires contacting Hybrid Tune. 

Installation requires "A" and "B" Looms. 

Consider the Fury if you want Onboard Digital Wideband Lambda Control.

Link G4X XtremeX Inputs

  • 8/10* x Digital inputs
  • 4 x Temperature inputs
  • 11 x Analog inputs
  • 2 x Trigger inputs
  • 2 x Knock inputs
  • *2 inputs required when using 2nd CAN Bus

Link XtremeX Outputs

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

Link XtremeX Communications

  • 2* x CAN bus
  • 1x Serial (RS232) connection
  • 1x USB tuning connection
  • Faster communications than G4+ models
  • 512 Megabytes Data Logging


  • Dimensions: 185mm(L) x 130mm(W) x 40mm(H) (without looms)
  • Mass: 680grams

Advanced features not found on the Storm:

  • Fully programmable E-throttle control complete with capability of gear shift throttle blip and antilag.
  • Cruise control.
  • Two independent CAN modules.
  • 30 general purpose tables (up from 20)
  • All Motorsport features including full gear shift control, cruise control, traction control, antilag and launch control.
  • Advanced closed loop lambda strategy and dual bank lambda control.

What's in the box?

Supplied with USB tuning cable and mounting bracket.

*Requires “A” & “B” looms or “A” & “B” connector kits, sold separately. 

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