Will this interfere with the factory bumper or air dam at speed?

No. The Turbo T profile is designed to sit flush with the OEM bumper line. Mount it to the existing bumper attachment points and verify fitment before final tightening. The lip extends beyond the bumper slightly for visual impact, but the profile is engineered to avoid air turbulence and clearance issues at highway speeds.

Should I bolt this on or use adhesive?

Bolt-on mounting to your factory bumper is the correct approach for this lip. Adhesive alone won't hold under cornering loads or highway vibration. Use stainless fasteners and seal the bolt holes with clear silicone after installation to keep moisture out of the mounting area.

Can I paint this carbon fiber, or should I leave it raw?

It comes clear-coated and ready to use as-is. If you want to paint it to match your bumper, sand and prep the surface before applying your chosen finish. The clear coat provides a good base to scuff. Many owners keep the weave visible for that carbon look — it's your call.