the stock CAI seems to be suseptible to heat soak, as when I tapped into the cars ecu durring a 75mph drive on the freeway, the Air Intake temp held a steadty 110 degrees F while the outside air temp was 70 degrees F.

You might want to try the phenolic spaces from tvt site. they cost about $100? this will be perfect match to the needswings CAI, should give less change in Temp from ambient to heat soak entering the motor. I would do this first before getting the ECu tuned.