Subaru IMPREZA GD 2007 Series Manual page 425

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EXHAUST
2. Front Exhaust Pipe
A: REMOVAL
CAUTION:
Be careful not to burn yourself, because the ex-
haust pipe becomes extremely hot after run-
ning.
1) Set the vehicle on a lift.
2) Disconnect the ground cable from the battery.
3) Unclip the clip fastening the harness and discon-
nect the following connectors.
(1) Front oxygen (A/F) sensor connector
(2) Rear oxygen sensor connector
(B)
(A) Front oxygen (A/F) sensor connector
(B) Rear oxygen sensor connector
4) Lift up the vehicle.
5) Separate the center exhaust pipe from rear ex-
haust pipe.
6) Remove the under cover.
Front Exhaust Pipe
7) Remove the nuts which hold front exhaust pipe
onto cylinder heads.
CAUTION:
Be careful not to pull down the front and center
exhaust pipe assembly.
8) Remove the bolts which hold the front and cen-
ter exhaust pipe assemblies to the hanger bracket.
FU-00009
(A)
9) Remove the front and center exhaust pipe as-
sembly from the vehicle.
CAUTION:
• The front and center exhaust pipe assem-
blies are very heavy. Be careful not to drop the
FU-02734
exhaust pipes when removing.
• After removing the front and center exhaust
pipe assemblies, do not pull on the rear ex-
haust pipe with excessive force.
10) Separate the front exhaust pipe from center ex-
haust pipe.
11) Remove the front oxygen (A/F) sensor and rear
EX-02121
oxygen sensor. <Ref. to FU(H4SO)-36, REMOV-
AL, Front
FU(H4SO)-37, REMOVAL, Rear Oxygen Sensor.>
EX(H4SO)-4
EX-02122
EX-02123
EX-02124
Oxygen (A/F) Sensor.><Ref. to