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Emissions Question

Two-Five Sti-L

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Hi All,


I just bought a LGT w/stage II and about to take the car in for emissions inspection soon, mods are STi UP, Cobb HFC DP, AP w/TDC stage II map.


Should I leave the ECU in its current stage II format, or flash back to stock? I don't intend to swap back the OEM hardware regardless.


Do I need to use the AP to chk for any CEL's first, and clear them if there are any? How exactly does the AP "suppress" the codes? :confused:



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