Do these mount at factory attachment points with no drilling?

Yes. These mirrors mount at the factory rocker panel and door locations — no drilling, cutting, or modification to your vehicle's sheet metal required.

Will these mirrors stay stable at highway speeds?

They're engineered to factory specifications, so they're as stable as OEM mirrors at any legal speed. Once adjusted, the powered motors lock them in place.

Do I need to run new wiring for the power and heat functions?

These tap into your vehicle's existing mirror wiring harness — no new circuits or relay modules. Your truck already has the infrastructure to support these functions.