Impreza Wagon AWD F4-1820cc 1.8L SOHC (1993)
Air Injection Muffler: Description and Operation
Silencer
PURPOSE
Reduces noise from the PAIR system.
LOCATION
Inline between the air cleaner and the air suction valve..
OPERATION
The silencer is made up of a series of baffles the reduce the noise caused by air being drawn into the exhaust flow.
