Do I need to modify the bumper or drill new holes?

No. These mount at factory fog light points — no drilling, cutting, or bumper modification needed. If your Ram came without fogs, confirm mounting availability before ordering.

What bulbs do I need?

Bulb type not specified with this assembly. Pull your OEM fog light documentation or test-fit the assembly first to confirm bulb size, then source separately.

Will I need additional wiring?

The integrated switch connects to factory wiring locations. If your Ram has factory fog light wiring harness, you're ready to go. If not, you'll need to tap into your electrical system — consult your vehicle's service manual or a professional installer.