ive got a second hand Power FC for the RB20DET.
This does not include the hand controller.
these are very hard to find! it took about six months to find the unit
$1600
Also have a second hand Z32 air flow meter.
Attached to it is a 4inch HKS pod by a HKS pod adapter.
i dont understand what you mean by calibration.
it is an upgrade because it it able to be more acurately tuned at higher power levels. this would be bought to go with a powerfc or a chip.
the sticker is gold.