sorry for stealing this but im doing big brake upgrade in my s14 that involved 350z track edition rotors,30mm z32 aluminium calipers,custom lines from enjuku racing,JSK adapter.
the problem is i cant figure out the extra banjo/rings that come if you buy jsk adapter.i know they located somewhere between caliper and adapter or between spindles and caliper in order to get rotors perfectly straight with calipers.

the diff between stock rotors and 350z track rotors
