According to the Mitsubishi dealer shop manuals, the front camber can be adjusted up to 1 1/2 degrees, but the rear camber is preset at the factory and can not be adjusted without a kit. Also, according to the manuals, the rear camber is considered within spec if it is between -1 degree and 1/2 degree.
A general rule of thumb is that for every inch you drop, your camber will be off by -1 degree. Of course it doesn't always work that way and every car, even the same model, will react differently. My car is dropped with Progress springs and is approximately 1.8" lower in the rear. My rear camber was off by -2 degrees. I had a camber kit to be installed when I got my alignment. When I got my 18" rims, they rubbed the rear fenders slightly going over big dips at higher speeds. I just recently removed one washer from every bolt of the camber kit so the rear wheels actually camber in about -1 degree and so far I have no rubbing. Realize that -1 degree of camber is within spec. That's just something to think about before you bother with a camber kit. With the front, I didn't need a kit and the alignment shop was able to adjust that to within spec. To adjust the front camber, alignment shops switch two bolts on each side to larger or smaller diameter ones, depending on how much camber correction is needed.
I hope that helps.
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