Do these mount to existing frame holes, or do I need to drill?

They mount at the factory attachment points on the Extended Cab frame — no drilling required. Bolt straight in with standard hand tools.

Will the black powder coat scratch easily, and can I touch it up?

Powder coat is durable for normal use, but rock strikes and curb contact will mark it like any painted surface. Touch-up paint matching the black finish is available separately if needed down the road.

What fasteners come with these bars?

Hardware is not included — you'll use the existing frame bolts at the factory mounting points. Have your fasteners ready before installation.