Car is a mostly driver and I want something better than stock for the nice curvy roads where I live (and the hopes for a future road track day) and would like suggestions.

Am I thinking correctly to start with maybe some Koni stock appearing replacements, bigger front swaybar, installation of a rear bar, and a set of subframe connectors???? Would these changes be a noticeable upgrade over stock, and worth it???

I've already installed polygraphite bushings/accessories to the front end, and MP front disc conversion. That's the only upgrades to the front.

Please tell me how you'd better the OVERALL suspension for a big driver car including brand of aftermarket pieces with a Goal under $1200.00.....Thanks