Do these mount at factory attachment points?

Yes, these use factory mounting points — no drilling or custom bracket work needed.

Will I need to remove the bumper to install these?

Mounting method not specified in the listing — test-fit and verify access from inside the trunk area or panel removal before committing to installation.

Are bulbs and wiring harnesses included?

The assembly is included. Verify bulb type and wiring compatibility with your vehicle before installation — you may need to reuse your existing harness or order bulbs separately.