I've owned S2000 since February of 2000. I bought it on a very special deal and had to wait a few months to take possession.
Outside of the factory and mule cars, it was the first running with a Comptech supercharger (serial number 0003). It was also the first to have a VAFC installed. I tried lots of mods along the way; mostly Mugen.
If I had to list mods by priority I'd say:
- Mod the driver (drive it a lot and take it to a few HPDE days to learn it's characteristics)
- Final Drive (suggest 4.57 gear ratio. The guys at www.hardtopguy.com run some great deals.)
- Adjustable coilovers.
- Reflash
- Sticky tires
- If you still need more.....Supercharger with aftercooler or water injection (gaseous intercooling)
- Reflash again
The money (and I spent a healthy five figures on mine) that you spend on headers, exhaust, pullys and such are clearly the least effective for the cost. I started out with Mugen header and exhaust. I ended up with stock and found no difference on the dyno with a supercharger.
I now have an MY04 and it's stock. I may do a final drive but I'm not sure. That is likely to be the only mod. It's very capable on the track just the way it comes from the showroom.
BTW - If you go to the S2KI.com forum, my handle there is hecash.