Suspension
 

I want to upgrade my suspension for autocross racing, but i don't know what to buy. What part will have the most impact on my handling, and what should i get with about $600. Thanks.

That's not much money... I'd suggest:

FMS5300C springs $135
Tokico hi-perf, non-adj, shocks & struts $275
Maximum Motorsports full lenght subframe connectors & lower chassis brace $120 & $80.

The subframe connectors will have to be welded, and you'll need an alignment too (that'll probably go $100 over budget).

Thanks for replying, i know it's not much money now but im gonna keep upgrading the suspension. I just want to know what is the best thing to get so i can get it now and get the smaller things later.

Also, do you know where i can get this stuff the cheapest? Working off of a highschool budget really sucks. Thanks