EJ Conversion Wiring Harness

With most EJ engine conversions, the most daunting task is generally the wiring. We are experts at the wiring required to complete an EJ conversion. We do not supply the entire harness, however, we do modify the harness from your donor car to suit your needs. You will need to ship us your donor harness and ECU from the vehicle the engine is from and we will ship it back to you a fraction of the size and ready to go.


  • Any EJ loom into any vehicle (pre-canbus)
  • EJ looms with factory key immobilisation have an additional cost


  • Completely stripped down to the essential wiring
  • Re-loomed for protection
  • Added fuses to protect circuits
  • Connections labeled ready for installation
  • Bench tested before dispatch




  • Your re-loomed harness is cut down and ready to go
  • Fused power inlets
  • Wiring guide