Subaru 2009 IMPREZA Service Manual page 328

(1) Gasket
(2) Spring
(3) Chamber
(4) Rear exhaust pipe
(5) Cushion rubber
(6) Self-locking nut
(7) Gasket
(8) Muffler
(9) Ornamental muffler tip (Models
with ornamental muffler tips)
(10) Center exhaust pipe front upper
cover
(11) Rear catalytic converter upper cover
(12) Center exhaust pipe
(13) Rear catalytic converter
(14) Rear catalytic converter lower cover
B: CAUTION
• Wear appropriate work clothing, including a cap,
protective goggles and protective shoes when per-
forming any work.
• Remove contamination including dirt and corro-
sion before removal, installation or disassembly.
• Keep the disassembled parts in order and pro-
tect them from dust and dirt.
• Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary re-
moval, installation, disassembly and replacement.
• Vehicle components are extremely hot after driv-
ing. Be wary of receiving burns from heated parts.
• Be sure to tighten fasteners including bolts and
nuts to the specified torque.
• Place shop jacks or rigid racks at the specified
points.
• Before disconnecting connectors of sensors or
units, be sure to disconnect the ground cable from
the battery.
• If any fat adheres to the exhaust pipe, wipe it off.
Otherwise a fire may happen.
General Description
(15) Center exhaust pipe front lower
cover
(16) Front oxygen (A/F) sensor
(17) Front catalytic converter
(18) Rear oxygen sensor
(19) Gasket
(20) Gasket
(21) Front exhaust pipe
(22) Front exhaust pipe upper cover LH
(23) Front exhaust pipe upper cover RH
(24) Front catalytic converter upper cover
(25) Front catalytic converter lower cover
(26) Front exhaust pipe lower cover RH
(27) Front exhaust pipe lower cover LH
(28) Band
(29) Hanger bracket (MT model)
EX(H4SO)-5
(30) Hanger bracket (AT model)
Tightening torque:N·m (kgf-m, ft-lb)
T1: 7.5 (0.8, 5.5)
T2: 13 (1.3, 9.6)
T3: 18 (1.8, 13.3)
T4: 23 (2.3, 17.0)
T5: 30 (3.1, 22.1)
T6: 35 (3.6, 25.8)
T7: 40 (4.1, 29.5)
T8: 48 (4.9, 35.4)
T9: <Ref. to FU(H4SO)-41, INSTAL-
LATION, Front Oxygen (A/F)
Sensor.>
T10: <Ref. to FU(H4SO)-43, INSTAL-
LATION, Rear Oxygen Sensor.>
EXHAUST