have done a wee bit of research and am trying to talk myself into lowering my 05 sri. seems like the springs to have are eibach, but as these are only -30mm will there be a noticable difference? also would this have a really bad effect on my rear wheel camber? was wanting to use my existing shocks, should this be ok ? or i could just stick with what i have as i am quite happy with the set up, just a bit bored and thought this would be the next step in modding my vec, you know what its like, any advice on this subject would be much appreciated