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

Yes. These are designed as direct replacements for factory Cascadia headlights — they connect to your vehicle's stock harness without adapters or modifications.

Will I need to aim or adjust these after installation?

Aim should match your factory units, but it's worth checking your beam pattern after install to ensure optimal coverage. Most drivers don't need additional adjustment, but road conditions and load weight can affect aim slightly.

Are bulbs included or do I need to source them separately?

These are complete LED projector assemblies — the LED elements are integrated into the housing, so no separate bulb purchase is necessary.