When it comes to wires, headlights, ect my philosophy is, if its not broken leave it alone.
With that being said, I did the big 3 upgrade from the board member and the wires were very well made. I did see less voltage drop VIA the dash volt gauge.
I actually ended up taking the wires off and replacing back with AC delco due to me not liking how they looked under the hood.
I don't run any amps, big radios ect, so the factory wires are good for me.
As far as my head lights go, they turn on and off and shine good light in the dark and thats good enough for me. With that being said, my truck is a show truck and doesn't get driven in the rain or any bad weather. Heck the truck doesnt even hardly get driven at all anymore do to the China Virus shutting down the world.