Does this splitter come with mounting hardware?

The splitter ships as the panel only. Verify your wide body kit documentation for the specific fasteners required at your vehicle's OEM bumper mounting points, as hardware compatibility varies by kit configuration.

What prep work is needed before painting?

Sand the entire surface with appropriate automotive sandpaper to remove the mold release agent and create proper paint adhesion. Wipe clean with a tack cloth and apply your primer and topcoat system of choice.

Is this splitter designed to work standalone or only as part of a wide body kit?

This splitter is engineered as part of a complete wide body package. It mounts to OEM bumper points but delivers the intended aesthetic and fitment when installed alongside the full kit.