Will these fit into my factory headlight housing without any modification?

Yes—these are engineered to mount at the factory integration points within the OEM X6 headlight assembly. No cutting, drilling, or body modification needed.

Do I need to replace the entire headlight unit, or just swap the DRL?

These install directly into your existing headlight housing. You're not replacing the full assembly, just the daytime running light element itself.

What kind of wiring or power connection do these need?

Wiring configuration and power requirements are not detailed in the product specs—confirm fitment and connector type with our support team before installation to avoid compatibility issues.