Will this bolt directly to my truck without drilling new holes?

Yes. This mirror mounts at factory points — no drilling or modification required. Line up the holes and secure with fasteners.

Does the power adjustment and heating work right out of the box?

Plug the harness into your existing mirror connector. If your truck came with powered or heated mirrors, functionality carries over. Manual trucks will have a stationary mirror.

Is this the same size as the original mirror?

Yes — this is built to OEM spec so it maintains the same glass size and housing profile as your factory mirror.