Will this interfere with my factory bumper or trim at speed?

No. The Forge Works lip is designed to clear the bumper's existing geometry and sits within the natural airflow path. Verify that your bumper mounting points are unmodified before installation, and ensure the lip sits flush across its entire length during fitment.

Can I use adhesive instead of drilling, or does this require fasteners?

This lip uses factory mounting locations, so fastener holes are already present in your bumper. Adhesive-only mounting is not recommended for front lips, as vibration and airflow stress fastener attachment. Use fasteners at all existing points and apply urethane adhesive as a secondary seal for added security.

What prep work do I need to do before painting?

Sand the primer surface with appropriate grit to promote paint adhesion, then clean thoroughly to remove dust and debris. Your chosen paint system (single-stage, base-coat, or specialty finish) will dictate specific prep steps—follow your paint supplier's recommendations for best results on FRP.