I checked the Smartpages site, and this appears to be the place. It is on the east side of Van Nuys Bl, just south of the 101 Fwy. I think Sundimmers was the name of a place in Santa Clarita when I lived there. I would recommend going there and checking out what products they are using now. I got a titanium tint that does fade very little, but there is no real color change. I would go to them again. Here is the info:

http://www.smartpages.com/home/sunshieldglasstinting1