Provided your bike has a disc-mountable rear swingarm and fork (when did they start making those 1999?), I would think you could use any brand you want. If not, then the closest you can get is the old Magura HS11's (which are very powerful)!
Image off the web ...... https://img204.imageshack.us/img204/1669/p1040891zf0.jpg
Image off the web ...... https://img204.imageshack.us/img204/1669/p1040891zf0.jpg
