Do these need any wiring work, or do they plug straight in?

These mount into your existing bumper cutouts and connect to factory harnesses. If your wiring is intact, they plug right in—no splicing or rewiring required.

Will the bulb burn out, and can I replace it easily?

The bulb included is standard and replaceable. You can swap it out anytime with a matching type from any auto parts store. Socket design allows straightforward bulb changes.

Are these a direct swap for my original lights, or do I need to modify the bumper?

Direct swap into factory mounting points—no drilling, cutting, or modification. If your bumper has the original signal light cutouts, these bolt in without any bumper work.