Do these bolt directly to my car or do they need custom mounting?

These are direct replacements — they mount exactly where your factory corners sit. No custom brackets or drilling needed.

Will I need to remove the factory trim to install these?

Yes, you'll need to pull the bumper cover or access panel to unbolt the old lights and seat the new ones. Basic hand tools and maybe a screwdriver set you up.

Are the bulbs included or do I need to transfer mine from the old lights?

Transfer your existing bulbs from the factory corners — they'll plug right in. These are housings only.