KillerBee370

I track the car. If you are asking about bare bones performance mods for this car at the track IMO it would be-

-Sport package (for the larger brakes alone)
-Oil cooler (a must)
-HFC's + CBE + tune (let's produce some power here)
-Brake pads (because fade on a stock pad at the track just sucks)
-Sway bars (when you get them, you will know what I'm talking about and instantly realize the difference in handling)
-Proper fluids (you don't need boiling brake fluid)

That's really about it as this car is pretty good to go right out of the box.

Some secondary things to consider would be optional things to either increase performance further or provide better safety such as-

-Racing seat + 5 point harness (better control over your body during G's means better performance over your car)
-Tires (track dedicated racing rubber)
-Added downforce (usually a good thing)
-SS brake lines (like the sways, if you don't have them, you won't know what I'm talking about until you do)
-Coilover suspension (let's make the suspension just that much better)