Will this interfere with the hood when open?

No. The lip is mounted to the lower fascia and does not extend into the hood jamb area. Check your vehicle's specific OEM mounting points to confirm clearance before installation.

Can I install this with adhesive or do I need to drill?

This piece uses factory mounting points, so fastener installation via existing holes is the standard method. Avoid adhesive-only attachment on a front-mounted piece; use mechanical fasteners to ensure stability at speed.

What prep work do I need before painting?

Sand the surface with appropriate grit to promote paint adhesion, then clean thoroughly to remove dust. Apply your chosen primer and topcoat per the paint manufacturer's instructions for best results.