from the manual this is for the NA:

OPERATION
The MAP Sensor monitors the pressure in the intake manifold. The pressure in the manifold moves a diaphragm connected to piezo resistors which alter their resistance values. The output voltage of the resistors serves as infor- mation to the PCM about the pressure in the intake manifold.
OPERATION - SRT
On the Supercharged 3.2L engine, the MAP serves as a PCM input, using a silicon based sensing unit, to provide data on the manifold vacuum/pressure that draws/pushes the air/fuel mixture into the combustion chambers. The PCM use the map data combined with the intake air temperature to determine the volume of air entering the engine.
REMOVAL
REMOVAL
1. Disconnect the negative battery cable.
2. Remove the engine cover. Grasp both corners of the engine cover, and pull up firmly.
3. Disconnect the Manifold Absolute Pressure (MAP) sensor harness connector.
4. Remove the retaining bolt (1).
5. Remove the MAP sensor.