Will these plug directly into my factory wiring harness?

Yes, these are direct replacements designed for factory mounting and electrical connection. No adapter or rewiring needed — pull the old markers and install the new ones.

Do I need to remove the entire bumper to install these?

Not necessarily. Most installations access the markers from behind the bumper panel. Your service manual will confirm access points for your specific model — some allow removal without full bumper takeoff.

Are these street-legal with the smoked lens?

Smoked markers are legal in most jurisdictions as long as light output remains visible at regulation distance. Check your local laws — some states have stricter requirements than others.