I read that its possible to get more than -1.5 degrees of camber on the front wheels with stock springs and koni shocks. does anyone know how?

you have to take out some caster to get more camber, and you have to do it with a alignment machine

why would you want to go that much -ve camber?

not all Konis are created equal and there can be more to it than simply bolting them on ... ;)

... as in degassing?

or also high pressure monotube. Koni is just a general name, they make quite a few different shock models, including a bunch of custom stuff.

FYI, -1.5dg is possible even on stock suspension if you are lucky. I was running -1.5/-1.8 prior to putting in the Koni. You need to find a skilled shop who does alignment as its speciality.