Will this bolt directly to my existing bumper cover?

Yes, this bracket mounts at factory points on the vehicle frame. Your bumper cover bolts to this bracket—no modification needed. If your cover is cracked or old, you may need a new cover to go with it.

Do I need any fasteners that aren't included?

The bracket itself is included. You'll need the bolts that secure it to the frame and the cover to the bracket—check your service manual or your existing hardware to confirm the correct sizes.

Can I repaint this, or does it come primed?

Finish condition is not specified. Test-fit it first to confirm alignment, then decide on paint prep based on the condition you receive.