Will this reinforcement bar work with an aftermarket bumper cover?

This bar mounts at factory points. Aftermarket covers vary in mounting design — you'll need to verify the new cover uses the same mounting structure or can be adapted to this bar's attachment points.

Do I need to paint this before installing it?

This bar is raw panel construction. Paint it to match your bumper before or after installation depending on your workflow — just make sure mounting surfaces stay clean and bare for a solid bolt-on fit.

What hardware comes with this?

The bar itself ships as an assembly. Fasteners and brackets are not confirmed in this listing — verify with your vehicle's service manual or test-fit before committing to fastener type and torque specs.