before you spend your $$$$ you may want to check out this site
http://www.wildweasel.ca/HowTo/Auto/IATSensor.aspx
i looked at a lot of car forums and they all say the same thing that the modification is just a cheep 10 cent resister that is not worth getting.
The IAT sensor is the only sensor between the air filter and the throttle body. Those "performance modules" that plug into where the IAT sensor harness are just resisters that "trick" the computer into thinking that the air coming in is cold. They are not any good and I would not use one.
You need to research JET CHIPS. They plug into the ECU and they have a Stage 1 and Stage 2. They arn't cheep but are the only thang that really works.
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06 Raider XLS Lava Red V-8 2WD 4DR
suggest that you do some on line research before you do damage to your engine.