I would do the the whole
suspension with gears (I did 4.10s). Get some different springs, add the rounded head bolts so you can fit the 315s, get the Steeda stop the hop kit, urethane bushings, another set of struts (I did the tokico D-specs). That's what my stage I consisted of. I did the whole
suspension, then added some 17x10.5 rears with 315/35s. I have an 01 Cobra.
The car is a completely different animal, and took me a little while to relearn how to drive it.
Headers are nice, I have the
kooks 1-7/8 stepped, but they were a pain in the butt to get in. I also added the
magnaflow exhaust, accufab twin bore TB (twin 63mm I think), meziere electric water pump. The was all stage II stuff. From there I went nuts, but that should give you a good idea.
OH, and I had the car tuned via SCT software, and picked up 20whp and 18lb-ft peak.