Do these bolt directly to the truck, or do I need to drill mounting holes?

They bolt to factory mounting points—no drilling needed. Use the existing holes on your frame and rocker panels. Torque specs are in your truck's service manual.

Will these bars need paint or can I install them as-is?

The silver powdercoat comes ready to bolt on. If you want a different color, you'll need to prep and paint before installation. Light scuffing with fine grit is standard prep if you go that route.

What comes in the box—do I need to buy mounting hardware separately?

You get both bar assemblies. Confirm your truck's OEM bolt size at the factory attachment points before ordering; service manual will have that spec. Most trucks use hardware you already have on hand.