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Or, move your existing IAT sensor and see how that performs.  Dodge IATs run hotter than other makes, because they are usually in the intake manifold somewhere.

Moving your air temperature sensor (IAT) closer to the filter will allow it to get a cooler temp reading. It provides the engine management system with an air temperature signal, which is necessary for its fuel calculations. While the mass airflow meter (MAF) measures the actual volume of air entering the engine (an important component for the fuel and ignition timing map), the IAT performs a much different task. Its job is to help the computer calculate the density of the air being metered through the MAF and then signal to the engine management computer what sort of trim to apply to the fuel injector pulse. Basically the hotter the intake air, the less oxygen it contains and therefore if a fixed amount of fuel were being injected, the richer the engine would run. Conversely, in colder conditions when the air is denser and contains more oxygen, more fuel is required to prevent a lean condition. After moving the sensor it will read as much as 20 to 30 degrees cooler.

First locate the sensor in the Air tube which it should be just before the MAF sensor.  If you do not have a MAF sensor, then find your sensor.  It will be on the intake system somwhere.  The Avenger IAT is on the Intake, left side, first sensor with two wires.  The other one is the MAP sensor with three wires.  Dodge has a habbit of placing the IAT in the intake manifold, where it gets VERY hot!  The ECU's probably adjust for it, but none the less, most other makes place the IAT in the intake tube after the MAF sensor, or elsewhere in the intake tube.

Remove the factory wire connection and leave the factory IAT sensor in place. and find a new location on the intake tube closer to the filter.

Drill a 3/4" hole into the intake tube and insert the sensor grommet and new sensor that Jet Performance provides. Plug in the wire that Jet provides to the factory plug, then route the wire using zip ties to secure the wires to the new sensor.

Again, you can rig a bypass switch system to go back to the original sensor, and this one with another plug, and some relays and so on. . .

IAT LOCATION:
 
 
 
 

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