Hi Justin,
Thank you for your enquiry.
"Ive brought a vt calais 5speed manual ( converted getrag gearbox ) but is still running the auto computer. I have a manual computer to install but wondering if anyone has done it themselves or do i put it into the mechanic?"
Fitment is simple, handled by even the most inexperienced DIY enthusiast in around 10-minutes with only basic tools. All you need to do is remove the passenger side kick-panel, take out the existing ECU from its brackets, unplug it and then installation is the reversal of removal.
If you have any other questions, please do not hesitate to ask.
Kindest Regards,
Damo