Will this interfere with my OEM bumper or grille opening?

No. Parvin-profile lips are designed to tuck cleanly under the bumper edge without blocking airflow to the radiator or interfering with factory mounting points. Verify your bumper is OEM or a direct replacement before ordering to ensure proper fitment.

What adhesive or fastening method should I use?

This lip mounts via bolt-through assembly at factory anchor points. You'll need hardware appropriate to your bumper's existing holes. No adhesive is required — mechanical fastening keeps it secure at speed and allows future removal without damage.

How much preparation is needed before painting?

Sand the primer surface with standard automotive prep grit to ensure paint adhesion, then wipe clean of dust. Apply your chosen base coat and clear. FRP's primer coat bonds well with urethane and acrylic paints, so no special sealers are necessary.