Will these plug directly into my truck's existing wiring?

Yes — these use factory electrical connectors, so no rewiring is needed. Installation is straightforward with factory mounting points.

Do I need to remove or modify anything on my truck to install these?

No drilling or modification required. These mount at the factory headlight locations using OEM attachment points.

What's the difference between the projector and DRL functions?

The projector beam provides your main low and high-beam lighting for night driving. The 3D LED DRL is a daytime running light that also serves as a marker when parked — it runs independently of the projector and uses less power.