2002 chevy cavalier mod advice?

Your cavalier can not be supercharged and turbo charged for one.Is it automatic for 2nd if not a center-force racing clutch will do you good.For a smooth ride...I am not sure what type of aftermarket suspension is out there which could make it look cool and give it a smoother ride.Convert rear drums to disc if they aren't already.Brembo caliper covers unless you want to spend $2600 or more on the Brembo brake system.And an exhaust with a header.Maybe a upgraded fuel management and injectors a cam and such.But with a cavalier I don't know much about them if you want more power see if they have a stroker kit you can bore the engine 0.040 I know for a fact.But since your going with a supercharger or a turbo charger Might as well get forged internals so you can safely run more than 6-9 psi to maybe 12-18 psi with a boost controller.But supercharger is probably cheaper than a turbo considering you dont have to get an intercooler if you accoustic supercharge.Good luck with it and BTW theres a difference between ricers and racers ricers have stupid stickers and not so aerodynamic spoilers that look like they should be on submarines or crop dusters