Hi and welcome Miro
If you can't locate an off the shelf set of coilovers for your 323 then there are threaded sleeves that can be used to convert the struts over to make them height adjustable '
I am unsure if your rears are struts but if not then the existing coil springs can be reset to give a lower ride height by any good spring maker .
You may need to contact sellers on this site. Good luck.