thanks to both of you.
so its quite a matter of own opinion and experience about if the ST or Linear is better
IF the linear is as fast as ST for example 1/4 mile or 1 mile top end speed...then i think the linear is more likely the one i will use.
and i just read on wrx/Cobb AP/cattless "forum"īs message that Cobb AP will expand the values so high that should be no CEL warnings to ecu,if i am correct then there should be no problem with the OBD test.