Will this mount directly to my existing bracket without any modification?

Yes. Factory mounting points align with original holes — bolt straight in using OEM fasteners or equivalent hardware.

Does the bulb come installed, or do I need to transfer mine from the old light?

Transfer your existing bulb from the original tail light into the new assembly. Socket design is standard and compatible with OEM bulb types.

What if I need both sides — do I order two of these?

This is the driver-side unit only. Order the passenger-side light separately to complete a full rear lighting replacement.