Do I need to drill holes in my bumper to install this?

No. This bracket is designed to use your Fit's factory mounting points, so drilling isn't necessary. Just align it with the existing holes and bolt it down.

Will I need to remove or modify my front bumper to get this on?

You can install this without removing the bumper—just get behind it enough to access the mounting points. Some builders prefer removing it for a cleaner install, but it's not required.

What hardware do I need to bolt this down?

The bracket itself is included, but you'll need to source bolts and fasteners that match your factory mounting holes. Standard hardware store bolts work fine—check your owner's manual or test-fit to confirm the size before purchasing.