not ignorance asking questions, curiosity and things to learnPardon my ignorance, but why do this upgrade ? Again pardon my ignorance.
the 88-02 has the old style drum brakes.
so the warriors and banshee hydro front brakes would be a good upgrade. although if you have 03+ you should already have the nice hydros.
same with the rear 88-02 has the cable brakes
03+ has hydros. It is NOT a direct swap to run 03+ rear brakes on the 88-02
however, Awk08 makes a hydro (gixxer motorcycle brakes) conversion kit that you just bolt on, and they work wonders