It's a computer. It can be reprogrammed. DCCD works based on sensor input shifting the front to rear power. You could reprogram it to add more 50/50 bias in auto mode, for example.
ABS systems are designed for specific brake characteristics and should really be reprogrammed when dramatically different sized calipers are used, not that people do. It's another reason why big brake kits are such a bad idea for a street car (they mess up the functionality of the ABS computer). Most track cars just disable the ABS so they could care less.
Almost anything with a chip these days runs code stored in some form of memory. In a discrete application, it's typically programmable read only memory which comes in many different forms. If you know specifically what to do, you can re-flash the prom to adjust parameters.
Not many people fool around with these things so there isn't much knowledge out there on which pieces of memory to play around with for which purposes. That doesn't mean it can't be done.
2015 STi: Still Stock
04 STi, 04 WRX: SOLD