basically because its not 100% tested, prof has it in his , says he loves the combo so far
it will come with a wilwood master cylinder, a billet mounting bracket, with a billet adjsutable arm that will connect to the oem ball on the pedal
you will also get a new bracket for the resevior, one probably large enough to install the line lock an the resevior if wanted, it will mount like a line loc bracket
it will have braided lines from the master to the slave with a line as long as the feed line with a fast bleeder on the end, so both lines can be ran together and you bleeder either under the hood at the master or under the truck
the slave is a cast unit with all the plastic parts removed and billet ones replaced
and with a new bearing, now you can shim the bearing some, but basically to make it an easy install non adjustable, but someone with tranny knowledge will understand how.
as soon as the machinest is back from vacation an option will also be a billet resevior