Throttle Body: Removal

Remove the collector cover. <Ref. to REMOVAL , Collector Cover.>
Disconnect the ground terminal from battery sensor. <Ref. to BATTERY , NOTE, Note.>
Lift up the vehicle.
Remove the under cover. <Ref. to REMOVAL , Front Under Cover.>
Drain approximately 3.0 L (3.2 US qt, 2.6 Imp qt) of coolant. <Ref. to DRAINING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant.>
Remove the intercooler. <Ref. to REMOVAL , Intercooler.>
Remove the intake duct No. 3. <Ref. to INTAKE DUCT NO. 3 , REMOVAL, Intake Duct.>
Disconnect the connector (A) from the throttle position sensor, and disconnect the preheater hose (B) from the throttle body.

Fig 1: Throttle Position Sensor Connector And Preheater Hose
Courtesy of SUBARU OF AMERICA, INC.
Remove the throttle body from the intake manifold.

Fig 2: Locating Throttle Body Bolts

Courtesy of SUBARU OF AMERICA, INC.