Wheel offset
 

I believe stock offset it +55?

I put some +40 17's on and have a little premature wear on the outsides.

Im thinking about bringing the camber in to possibly put more of the weight towards the middle of the wheel (since the wheel is not out as far as it should be). Has anyone done this? Does it work? Does anyone know how many degrees of adjustment are available from the factory? Should i get camber essentric bolts?
(I dont believe in spacers...)

40 is pushing the limits, I would say stay at least with a 45 offset. There are plenty of wheels in all price ranges out there for Subarus. Would you buy an intake for a Neon and try to make it fit on your WRX? The farther off your offset is, the faster you will be wearing out tires and wheel bearings. Not to mention your steering geometry will be all out of whack and your handling will suffer. Stick to the proper fitment if at all possible.

That being said, you have it backwards. A 40 offset wheel sticks out farther than a 55 offset wheel. So spacers would only further decrease the offset, which wouldn't help. Increasing camber isn't going to really help either, but you do need eccentric bolts to adjust the rear.

The offset problem is solved
 

Got some 5zigen rsx +48 17's and sold the ADR fuel +40's

that looks awesome more pictures?