Do these lights require any bumper modification or cutting?

No. These mount at factory rocker points — the mounting holes are already there. No cutting, drilling, or bumper surgery needed.

Do these come with bulbs installed?

The assembly ships ready to install. Confirm bulb specification against your vehicle's manual before first use to ensure proper fit and brightness.

Will the crystal clear finish stay clear, or will it yellow like the original lights?

Crystal clear construction resists yellowing far better than aged OEM plastic. Over time, any lens will eventually show some UV damage — UV-protective covers or parking in shade will extend clarity.