Suspension upgrade necessary?

[mysweetlx]

Hey all, I'm new to the site, and I've come up w/ my first question for you all. As far as suspension mods, I've got Mac upper and lower rear contrl arms, southside welded-in subframe connectors and Eibach pro kit. My car seems to really hit bumps really rigidly (not too comfortable)........should I upgrade my front struts and rear shocks??? I've got the original ones still. I don't want to hurt my perforance at te track either, but the majority of my driving is on the street. Please help. Thanks.