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Ultimate Conversion Wiring specialises in custom conversions to meet your requirements. Together we tailor a fit for purpose solution. We have worked on many types of vehicles including award winning show cars , bikes and boats.

We were also the first to perform the LS1 PCM to 5L engine harness conversions.

Some of the vehicle/engines we have wired up.

  • Holden VN VP VR VS 3.8L, 5.0L & 5.7L
  • GM GEN 3 / LS1 GM Gen 4 / LS2 / L76 / L98 / LS3 / LS7 / LS9 / LSA
  • GM Ecotec / Alloytec / SIDI V6's
  • Ford Quad Cam 4.6, Ford Barra I6 and I6T, Coyote V8
  • Nissan SR20DET, CA18DET,FJ20T,RB20,RB25,RB26TT,RB30 & more...

    We can perform custom programming from Dash clusters , BCM's ECU's and more with the use of various factory tools like TECH 2 , FORD IDS/VCM, Hanatech, HPTuners and EFILive.