SlowSer and Matt, IMO , are center mass on target. Get better pads, stainless steel brake lines and a top-quality brake fluid.
I'm partial to Porterfield R4-S brake pads for high-performance street use and R4's for the track. Incidentally, I use OEM Nissan pads for the rears for street use. Then get some SMC Stainless steel brake lines. I use Motul 600 brake fluid and sometimes Ford Heavy Duty Brake Fluid in the blue cans. What ever pads you choose bed them properly. Bleed your brakes frequently. A product called Speed Bleeders
http://www.speedbleeder.com/ makes bleeding your brakes incredibly easy. Do all this and you will stop yesterday. A max performance (sticky) tire will also significantly reduce braking distance. As will overall weight and how that weight is distributed.
There have already been other high-quality brake pads and fluids mentioned in this thread. Pick your poison. These are my favorites after much trial and error. I'm sure there are others that are as good if not better.
As far as rotors go I use Brembo blanks in OEM size. No slotting and God knows no drilling. Powerslot rotors are nothing more than slotted Brembo blanks so they would be o.k. But once again, IMO, there is no need for them but they can't, as far as I have experienced, hurt either..
If you want to stop the rotation of the earth, SMC's BABK is the only way to go for our cars. High-quality, strong Wildwood calipers with larger rotors and the Altima master cylinder = stopping power! Yet this feat is accomplished with less unsprung weight than the OEM set-up! You get much more unsprung weight with the NX2000/AD22VF calipers and rotors. Way more than stock! And as we well know weight is bad, unsprung weight is the worst.
Remember, with any high performance pad you are going to get some noise (squealing) that is to be expected. They are race parts not grandma's Caddy's brakes. This is especially true with real racing systems like SMC's BABK. So be careful what you ask for, you just might get it.
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93 SE-R JWT S3 Cams, JWT ECU, JWT Pop-Charger, HS Header,RT Cat, HKS exhaust, Hypercoils, KYB-AGX, ST Sways, N-Tech Brace, Stillen STB, SMC SS.