Will this bolt straight to my door without modification?

Yes. This uses factory mounting points, so installation is bolt-on at the existing door bracket locations. No drilling or adapter plates needed.

Does the textured black finish need any prep before installation?

No. The finish is ready to install as-is. If you're replacing an old mirror, clean the mounting area on the door and bolt this one in place.

Can I return this if it doesn't fit my specific year?

Fitment is listed for 06-11 Yaris models. Test-fit against your door bracket before final installation to confirm alignment. Contact support with photos if you encounter issues.