Subaru 2009 IMPREZA Service Manual page 1172

B: INSTALLATION
1) Install the exhaust manifold to the front exhaust
pipe.
NOTE:
Use a new gasket.
Tightening torque:
42.5 N·m (4.3 kgf-m, 31.3 ft-lb)
2) Install the front exhaust pipe cover.
Tightening torque:
25 N·m (2.5 kgf-m, 18.4 ft-lb)
3) Install the exhaust manifold RH upper cover.
Tightening torque:
19 N·m (1.9 kgf-m, 14.0 ft-lb)
4) Install the front exhaust pipe assembly.
NOTE:
Use a new gasket.
Tightening torque:
40 N·m (4.1 kgf-m, 29.5 ft-lb)
Front Exhaust Pipe
5) Install the joint pipe to the front exhaust pipe as-
sembly.
NOTE:
Use a new gasket.
Tightening torque:
42.5 N·m (4.3 kgf-m, 31.3 ft-lb)
6) Install the exhaust manifold RH lower cover and
EX-02328
exhaust manifold LH cover.
Tightening torque:
19 N·m (1.9 kgf-m, 14.0 ft-lb)
7) Install the front oxygen (A/F) sensor. <Ref. to
FU(H4DOTC)-48, INSTALLATION, Front Oxygen
(A/F) Sensor.>
8) Install the under cover.
9) Lower the vehicle.
10) Connect the ground cable to battery.
EX-02254
C: INSPECTION
1) Check the connections and welds for exhaust
leaks.
EX-00005
2) Make sure there are no holes or rusting.
EX(H4DOTC)-7
EXHAUST
EX-00018
EX-02336
IN-00203