if you really do intend to get to the track then the real help will come from people who do it regularly. They may have an upgrade path that will be more beneficial than I can offer personally.

I do have an AutoX purpose built JDM Integra, but its suspension, steering and chassis modifications are pro level, so I was never really able to see how the intermediate stages affected performance on a vehicle with the factory specs. To compare chassis performance that is. I simply modeled it after some other winning racers setups.

Dig through some of the threads here and on DSMtuners and you will find some really great info on AutoX mods as well as records those users have and from which tracks. Sorry I could't be of more help at this point. Good luck!

The screen name says it all