Will this bolt straight onto my vehicle without modification?

Yes—this assembly mounts at the factory attachment points with no drilling or frame work required. You're looking at a direct swap using existing hardware on your vehicle.

Does this come with the bulb installed?

The assembly ships complete, but confirm bulb status before installation. You may need to transfer your existing bulb or source one separately depending on the condition of your old unit.

How do I know this is the correct side for my car?

This is the left side assembly. Verify your vehicle's damage or replacement need is on the driver's side before checkout. Shipping a wrong side creates a return hassle.