Will this bolt directly onto my car without any modifications?

Yes—it mounts at the factory attachment points with no drilling or bracket work needed. Test-fit before final tightening to confirm alignment with the adjacent left unit.

Do the bulbs come installed, or do I need to buy them separately?

Bulbs are not included. You'll need to source 9005 and 9006 bulbs separately and install them into the assembly before mounting.

Can I paint or polish this headlight, or does it come pre-finished?

The assembly ships ready to install. If you want a custom finish, sand and prep the exterior before painting—refer to your paint supplier for grit and primer recommendations based on the base material.