WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
SPECIAL TOOL(S)
Exhaust Back Pressure Gauge 309-D002 (D95L-6000-A) or equivalent
Socket, Exhaust Gas Oxygen Sensor 303-476 (T94P-9472-A)