Suspension question

I am thinking about buying the maximum motorsports starter box which includes bilsteins, H & R race springs, isolators, and cc plates. I use this car as a daily driver and I somethimes get stuck out in the snow. Will doing this upgrade negatively affect winter handleing or will it improve it? I want to figure out the pros and cons of a stiffer suspension before spending all the money. I also have MM LCA's waiting to be installed.

Thank you