Will this interfere with my trunk seal or rear bumper panel?

No. The HFP profile is designed to sit flush with the factory bumper geometry. Verify your bumper is clean and properly aligned before final fastening to ensure consistent gap alignment.

Do I need to drill new holes, or does it use the existing bumper mounting points?

This lip uses your factory rear bumper mounting locations — no drilling necessary. Inspect your bumper attachment points before installation to confirm they're clean and sound.

What prep is required before painting?

Sand and prep the surface with appropriate sandpaper and adhesion promoter before applying your chosen base coat and clear. Follow your paint manufacturer's surface preparation guidelines for best results.