OK guys I received the mirror, just layed it over the mirror already in the housing and it's a perfect fit. The only issue I have with it is they have the "liability" warning on them (OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR). They also advertised that the mirror can be installed directly over the original glass to allow for removal if you ever want to go back to your orginal mirror. The instruction indicate if you wish to have it so you can remove it, then silicone the mirror on top of the mirror in the housing. If you want it permanent, break out the old mirror then silcone it directly to the holder. For the life of me I don't understand how it would be removable if you silcone it to the original mirror??? Also the mirror is super thin and appears very fragile. They're made by Scott Drake so the quality is probably pretty good.
In any case I've got a cruise tomorrow so not messing with it until Sunday, I'll probably use a double sided tape to stick it over my current mirror to insure I'm happy with it before I silcone it on. I'll let you guys know what I think and if actually does improve visability on the passenger's side.
Jim