Will this interfere with my front bumper trim or splitter?

No — the GTF lip sits under the M-Sport bumper by design. Before ordering, verify your bumper is the M-Sport variant and check clearance with any existing splitters or aggressive lip setups you already run. A quick physical check under the front end confirms zero conflict.

Should I drill this to mount it, or are there adhesive-only options?

The lip is designed for bolt-on mounting to the existing M-Sport bumper attachment points. Drilling is not required if your bumper has factory holes. If you prefer adhesive-only installation, sand the mounting surface thoroughly and use an automotive-grade epoxy adhesive rated for carbon; however, mechanical fasteners provide the most reliable, reusable hold.

What finish should I apply — clear coat, paint, or leave it raw?

Real carbon fiber shows its weave best with UV-protective clear coat applied before installation; this also guards against oxidation and maintains the finish long-term. Paint over it if you want body-color matching. Raw carbon is an option if you're okay with eventual UV greying — just keep it clean and dry between drives.