Sandy is correct, remove stock reflector (as directions indicate) and it fits like a glove.
Ahhh, directions? Wondered about those! In my packaging I received 2 pages for the VTZ and nothing for the Valk. Thought their might be a mistake there. Oh well, done and over with now. Once again, it's hard to spend your money these days! Very seldom, hell I do not remember the last time I actually purchased something whether it was goods or services. That I did not have to return, call about, complain about, or modify (to keep from doing things listed).