OK, I spent some time printing and measuring the pictures Redleader posted. If the maze's are 2" x 3.15" (which they arent't always, this is the size listed by Danger Den). The offsets from the center of the inlet fitting to the closest wall are as follows:
Old Maze:
Fitting to Wall: 1.00"
Tollerance: 0.08"
New Maze "Upgrade":
Fitting to Wall: 0.765"
Tollerance: 0.055"
The tollerance is due to the fact that the opening below the fitting is larger than 3/8", so it could be mounted closer or further from the closest wall.
Remember however that these measeurements where taken from pictures that I blew up and used 2" as referance width.
Note that the old maze should be nearly centered and the new maze is at about .235 (almost a quarter inch) closer to the wall than center.
Please send real measurements so we can back up these estimates
Thanks everybody!
Edit: By marking on a piece of paper 1" and .765 I checked my Maze 2 and it definetly is the newer version. I can't get a more accurate measurement as it's already installed, and theres no room for a caliper.