Will this interfere with the trunk seal or bumper fitment?

The lip mounts to the bumper face and does not affect trunk geometry or weather sealing. Verify clearance to your specific bumper's mounting holes before drilling — reference your vehicle's service manual for exact hole locations and spacing.

Can I use adhesive instead of bolting it on?

FRP lips are designed for bolt-down installation at factory mounting points for long-term stability at speed. Adhesive alone is not recommended for this application — fasteners ensure the lip stays secure under vibration and aerodynamic load.

What should I do to prepare the surface before painting?

Sand and prep the surface with appropriate grit to ensure paint adhesion. Your paint supplier can recommend the right primer and topcoat system for FRP — always follow their prep guidelines for best results.