Does this come with mounting adhesive or clips?

Glass lens only—no hardware included. You'll need to check your existing mirror housing to see what fastening method your OEM backing plate uses, then source adhesive or clips accordingly.

Will this fit my existing mirror housing?

This is designed for the factory mirror backing plate. Test-fit before committing to any adhesive to confirm alignment with your housing tabs.

Does the glass need any prep before installation?

Clean both the glass edge and the backing plate with rubbing alcohol to remove dust and oils—that's it. No sanding or primer needed for the lens itself.