Will these bolt straight to my truck, or do I need to modify the fender or hood?

They mount at factory rocker points—no drilling or cutting required. Just unbolt the old housings and bolt these in place.

Do the halo rings work as daytime running lights, or do I need to add a relay?

The halos integrate into the factory parking and running light circuit. They'll function without additional wiring, but confirm your truck's OEM harness connector type before installation.

Can I repaint or refinish these if I want a different look?

The hard panel housing can be wet-sanded and refinished, but mask off all lens and LED elements before any prep work. Test-fit first to ensure the finished piece still seats correctly in the mounting pocket.