The only thing you need is a tire pressure gauge.
Set your pressures to 10 psi above factory recommended (for the car) and...
Use this as your baseline. Start throwing mods at the car right away and you won't get any real appreciation of YOUR improvement.
That and you will get frustrated with yourself and the car after spending gozillions worth of dollars and still get beaten because of inexperience.
Not throwing rocks, but that's just the way it works.
FORMER Avenging Moderator of the Apocalypse and Leader of the Axis of Oversteer
"I live with fear every day and sometimes, she lets me race."
2002 SVT Focus... Stock