Will this interfere with the trunk seal or hood clearance?

No. This lip mounts to the factory bumper attachment points and does not extend into the door jamb or hood line. Verify clearance on your specific setup before final installation.

Can I use adhesive instead of drilling through the bumper?

Yes. FRP lips can be secured with high-strength automotive adhesive rated for plastic-to-plastic bonding, or traditional fasteners through the existing factory holes. Choose the method that matches your installation preference and bumper condition.

How stable is this at highway speeds?

FRP construction and factory mounting design provide solid stability under normal driving conditions. Ensure all fasteners are fully tightened and verify fitment is flush to the bumper before highway use. Sand and prep the surface before applying your chosen finish for best adhesion.