Chris,
This is a complete re-wire. The original set up uses a dual filament bulb. The supply goes via the headlight switch, through the dipswitch to the bulbs so that only one filament is on at one time.
The dual headlight system is different.
The supply goes from the headlight switch direct to the dipped beams and they stay on all the time. The dipswitch sends the supply to the high beam when selected.
You can use the existing wires but you will need to rewire the headlight and dip/main switches and alter the fuses accordingly.
I am not aware of any kit made to do this, but I wouldnt need one anyway, so I stand to be corrected on that.
How competent an auto electrician are you ?
