Subaru Impreza 2002 Service Manual page 863

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
10) Separate the front catalytic converter from front
exhaust pipe.
NOTE:
The rear catalytic converter is integrated with front
catalytic converter. Therefore, the procedure for re-
moving rear catalytic converter is the same as the
description above.
B: INSTALLATION
NOTE:
Replace gaskets with new ones.
1) Install the front catalytic converter to front ex-
haust pipe.
Tightening torque:
30 N·m (3.1 kgf-m, 22.4 ft-lb)
2) Install the front and center exhaust pipe assem-
bly to the vehicle. And temporarily tighten the bolt
which installs center exhaust pipe to hanger brack-
et.
FRONT CATALYTIC CONVERTER
S2M0923
S2M0923
B2M3111
EC-4
3) Tighten the nuts which hold front exhaust pipe
onto cylinder heads.
Tightening torque:
30 N·m (3.1 kgf-m, 22.4 ft-lb)
4) Tighten the bolts which install front and center
exhaust pipe to rear exhaust pipe.
Tightening torque:
18 N·m (1.8 kgf-m, 13.0 ft-lb)
5) Tighten the bolt which holds front and center ex-
haust pipe assembly to hanger bracket.
Tightening torque:
35 N·m (3.6 kgf-m, 26.0 ft-lb)
6) Install the under cover.
B2M3200
B2M3109
B2M3111