try getting a price from motorware in clayton rich.
I second that, Stan got me a good price for my cannon style Varex and installed it too.
I've said it a few times but I'll say it again installing a Varex on my car was one of the best things I've done, as EVO-00X said, it's perfect for early morning/late night driving around the neighbours and is very discrete around the police when the valve is closed.