Do these mount at factory rocker points or do I need drilling?

These mount at factory mounting points — no drilling or frame modification needed. Use the OEM attachment points and you're set.

Does this finish need any prep or coating before install?

The finish ships ready to mount. If you want added UV or corrosion protection down the road, light surface prep and a clear coat will extend durability, but it's not required for installation.

What hardware do I need to bolt these on?

Fasteners for factory mounting points are not included with this assembly — you'll need to source bolts compatible with your OEM rocker attachment holes. Check your vehicle service manual or supplier documentation for bolt size and torque specs.