Will these bolt straight into my truck without modification?

Yes—these mount at factory rocker points with no drilling. Align and bolt down using existing holes.

Do I need to reprogram anything after installation?

Installation method and any required programming are not specified in the product data. Test-fit first, then consult your truck's service manual or a qualified tech for any electrical setup needed.

Are bulbs included, or do I source them separately?

The LED array is integrated into the headlight housing—no separate bulb purchase required.