Do I need to replace the bulbs, or do they come installed?

Bulbs are not included — you'll reuse your existing bulbs from the factory housings. Drop them straight into the new smoked units.

Will these work on my Avalanche if it doesn't have the body cladding package?

These are engineered specifically for cladding models. Non-cladding variants have different bumper geometry — test-fit is strongly recommended before committing to installation.

Do the smoked lenses meet DOT requirements for road visibility?

The smoke tint is designed to balance appearance with function. If you have concerns about brightness in low-light conditions, confirm compatibility with your local regulations before install.