Do these mount at the factory attachment points?

Yes. These boards use factory mounting locations — no drilling, cutting, or frame modification needed. Installation uses existing holes on your Highlander.

Will these need painting or prep work before I install them?

The aluminum arrives ready to mount as-is. If you want a painted finish to match your vehicle, handle that before installation to avoid damaging the boards.

What hardware do I need to complete the install?

Fasteners and mounting hardware are not included with this assembly. Check your vehicle's service manual or consult with a shop to confirm the correct bolt size and torque specs for your model year.