I will try to be short an easy, plenty of information about your topics in the forum.
As strat61caster point out, those threats are mandatory to read if you go to track.
-Brakes- Powerstop? Carbotech?
http://www.ft86club.com/forums/showp...&postcount=374
At least: Brake Fluid / Front Pads.
Tires- Hankook RS4s? How wide can I get for stock wheels? Staggered?
Running Falken Azenis RT615+ 225/40/17. Happy with them. Decent result on wet.
Not Staggered.
-Spacers- Needed to maximize wider tires?
Personally I will not use any spacer in Track Conditions.