My new rs, I need ideas

i would invest in preservation. make it clean and fix up any rust or dmgs. then upgrade after that. its easier to work on a clean non rusted car than one that is falling apart.

After you clean it up I’d do bushings all the way around! They are usually very worn out if they haven’t been done before and it will make your car feel so good!

Rear sway bar, my favorite mod ever. Front is very thick already, save your $$$. A larger rear bar will change your life, if you like a nimble / fast feel without NVH.