brake upgrades

[dirty180]

I drive a 95 180sx black top over here in Japan.Im guessing that my car runs about 280 whp when running a full bar. My drift runs in the mountains get scarier and scarier everytime i **** up. I still have stock rotors and some aftermarket brake pads (i dunno what) that i picked up from the junkyard. Im more of a driver than a mechanic... what is the easiest and cheapest brake upgrade that i can start with?