i've been to track days and go up in the mountains A LOT....
first off switch your pads and rotors... i have powerslots up front and ebc reds... oem in the rear and ebc greens... they're not enough... haven't had them a year, and they're already warped... i'm not sure where to go from here... i know ebc makes brake rotors, but i'm not sure they're any better...
definitely go with dot5 brake fluid that's the first thing i would do...
and as far as wheels, i would stick with the oems, and get a set of bfg g-force and replace all the bushings with poly ones and lower the front and rear by just a couple inches...
other than that, you'd have to go with a big brake kit to be competitive, but i'd just get a car, if that's the case...