Do I need fasteners to install this, or does it come with hardware?

Hardware is not included with this trim cover. You'll use the existing factory mounting holes and fasteners already in place on your vehicle — just align and secure.

Will this chrome finish hold up to road salt and weather?

Chrome trim is exposed to the elements like your bumper and factory trim. It'll develop patina over time with salt exposure. Regular washing and occasional waxing will help preserve the finish longer.

Can I paint or refinish this if I want a different color?

The chrome finish is applied to the base panel. You can sand it down and repaint it, but you'll lose the chrome appearance in the process — plan accordingly if you're considering a color change.