Would I need to upgrade my stock shocks and struts with these lowering springs?

https://www.ecstuning.com/b-megan-ra.../mrlsmc08~mgr/

I don't want to break the bank or lower my car too much, these springs are pretty modest.

Or how should I lower it? I live in Minnesota, so don't want to go to low

 

The springs really aren't bad and the price point is very good. We offer them
https://www.waymotorworks.com/megan-...g-springs.html

We would match them with some Koni yellows
https://www.waymotorworks.com/koni-y...5-r56-r57.html

But keep in mind with lowering you should also do the rear lower control arms to get the rear alignment back in spec and not eat through tires
https://www.waymotorworks.com/h-spor...ber-links.html

And ideally when doing springs it is really easy to do the rear sway bar which will be the biggest bang for the buck in improving the handling.
https://www.waymotorworks.com/wmw-rear-sway-bar.html