These looks to be one of the cheaper camber plates out there (looks well built nevertheless), anyone have first hand experience on them and knows how much additional camber can be reached with these? My car with C2S with Eibach springs can reach at maximum negative camber of -1.5 degrees.

From FVD site:

FVD-Alu-CamberPlates replace soft top strut rubber bushings. The FVD-CamberPlates are machined from billeted aluminum, providing you with a wide range of camber possibilities. FVD-Alu-CamberPlates fits on Original-Shocks and CUP-Shocks.