Update
I relocated the IAT sensor from its original position, after the intake air heater and before the throttle body, to before the intake air heater. I think this should provide the proper amount of extra spark advance that will compliment the EGR resistor mod.
Intake Air Sensor relocation
Air Filter Box, Modified with Intake Air Heater - Top View
Air Filter Box, Modified with Intake Air Heater - Bottom View
Dummy IAT sensor in original IAT spot
Induction system, showing Intake Air Heater coolant hoses (and oil catch can)
