Do these splitters work standalone or must they be paired with the DL-R side skirts?

These are designed to work as part of the complete DL-R system. You'll need the DL-R side skirts (part # 108447) to achieve the intended look and function.

What prep work is needed before I paint these?

Sand the surface with standard automotive sandpaper and wipe clean. Fill any voids with appropriate body filler if needed, then apply your chosen primer and topcoat. The FRP base accepts most automotive finishes.

Do I need any special fasteners or hardware to install these?

Verify your vehicle's OEM side skirt mounting points and fastener locations before ordering hardware. Once you confirm the existing holes, standard automotive fasteners will secure these splitters to your platform.