Will these fit my factory bumper without drilling or cutting?

These mount at factory signal points — no drilling required. Test-fit before final installation to confirm alignment with your bumper opening.

Do I need to seal these after installation?

Hard panel construction doesn't require sealant, but you may want gasket tape or silicone around the mounting edges if you're concerned about water intrusion. Check your bumper's design first.

Can I use my factory bulbs in these lights?

The assembly ships without bulbs. Your existing factory bulbs will likely work, but verify the socket type matches before ordering — some older OEM bulbs may not fit newer lens designs.