Paora Smith Posted March 12, 2014 Report Share Posted March 12, 2014 Hi Guys I purchased a g4 up grade from link a while ago installed it as I intended on getting a retune but I am running out of time. Is it possible to downgrade/reinstall the previous software so I can run the previous tune until I have upgraded the cams etc? Quote Link to comment Share on other sites More sharing options...
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