Wiring harness
New custom wiring will be a lot of work. But you can pick your gauge, colors, routing ect. I just bought bulk spools of misc colors & gauges. Didn't like the universal kits.
Good luck.
Plus it helps that everything comes with wiring instructions so you shouldn't be walking around in the dark.
I kept:
Ignition Switch
Power Windows
Marker/Tail lights
Headlights (no bright/dim)
Brake Lights
dome light
gauge light brightness rheostat thingy

remote hatch release.
Everything else is gone and rewired for the BS3 and a couple gauges..
It's really not bad at all, just time consuming. You have to strip all the loom and tape off the existing harness, and that's a sticky mess.
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon

