[eclipsed at 3am]

to tune your car, a wideband would be awesome. but not everybody has one so....

the safc has some sort of a/f gauge//o2 voltage meter, but its a pain in the butt to navigate through the menus quickly enough back and forth when you are tuning your car. instead of a wb you should at least have an actual a/f gauge and an egt gauge, and that should be good enough for a basic tune.

oh and....get a dsmlink.