Do these require any adhesive or fasteners to install?

These mount at factory points — no adhesive or drilling. Verify the mounting tabs align with your door window frames before final seating.

Will these fit if I have aftermarket window tint already installed?

Window visors sit on top of the door frames, not on the glass itself. Existing tint won't interfere, but test the fit first to make sure the visors seat properly against your door.

Can I paint these or do they need any prep?

These ship with a smoke finish ready to install. If you want a different color, sand and prep the surface before painting — use appropriate automotive primer and paint for best adhesion.