Frost Tune & Illinois Emissions Test?

I have a 1999 Z28 throwing codes for Rear O2, EGR & AIR, Car runs GREAT! I understand that the Frost Mail Order Tune turns these items off. Does anyone know if I would still pass the Illinois emissions test with those points turned off? Just wondering before I order it. Thanks Much!

I passed in IN with mine turned off and the AIR system deleted. As long as the PCM is still receiving the correct signals (which it would with a tune for deleting the rear O2's), you should be fine. I don't think IL does a visual inspection.