Will this interfere with the trunk seal or bumper fitment?

No. This is a front lip designed to mount at the lower bumper edge. Verify clearance to any front splitter or aftermarket bumper you're running, as aggressive lower aero can shift mounting points slightly. Check your specific setup against the lip profile before final installation.

Does carbon fiber need special prep before installation?

Yes. Sand the mounting surface lightly to remove any shipping dust or residue, and clean thoroughly with isopropyl alcohol. Dry completely before bolting to the bumper. This ensures a clean contact surface and prevents micro-movement once fastened.

How do I maintain the carbon fiber finish?

The clear coat protects the weave from UV damage, but avoid harsh chemicals and abrasive scrubbing. Wash with mild soap and water, dry with a soft cloth, and apply a quality automotive wax every few months to maintain the gloss. Minor scratches can be touched up with clear coat if needed.