Do I need to sand the primer before painting?

Yes. Sand the entire surface with appropriate grit to scuff the primer finish and ensure paint adhesion. This prep step is essential for a clean final result regardless of your chosen paint system.

Will this interfere with my lower valance or splitter?

The lip mounts to your factory bumper points, so compatibility depends on your specific valance or splitter setup. Verify clearance between this lip and any additional aerodynamic components before finalizing installation.

What fasteners do I need to install this?

This lip uses factory mounting locations on your OEM bumper. Refer to your vehicle's service manual or the mounting point specifications to select the correct fastener type and torque values for secure attachment.