Will this reinforcement bar work with an aftermarket front bumper?

This bar is engineered for the OEM bumper assembly and mounts at factory points. If you're running a custom bumper, you'll need to verify the mounting locations align before purchase.

Do I need to remove the bumper cover to install this?

Yes—the reinforcement bar mounts behind the bumper cover at the factory bolt points. You'll need to remove the cover, bolt the bar in place, and reinstall the cover over it.

Can I paint this before installing it?

You can, but it's easier to install first and touch up any fastener areas afterward. If you do paint ahead, make sure the mounting holes stay clear of paint so bolts thread cleanly.